Maintenance, Engine & Driveline Tech This forum is brought to you by The Speed Syndicate (TSS) in Burnaby. Discussion of maintaining your engine, transmission, differentails, rear ends, and mods associated with "driveline" parts.. | | |
06-30-2012, 10:54 PM
|
#1 | Need to Seek Professional Help
Join Date: Jun 2010 Location: Vancouver
Posts: 1,076
Thanked 359 Times in 162 Posts
| Fuel Efficiency got worse
I've noticed that my 1998 Honda Civic's fuel efficiency has gotten worse at my most recent fill up. used to get around 400-450km/38-40L. Recent fill up was 380ish km before filling up 38ish L.
-Primary O2 sensor, Distributer cap, and injectors was replaced last year at rise.
-Spark Plugs about 3 years ago
-Fuel Filter around 2 years ago
-Oil changed and oil filter about 3 months ago.
-Air Filter just a few months ago.
i may be forgetting something but in the 4.5 years i've had this car, i've only driven 30,000km, and have been doing oil changes and oil filter changes ever 6months, give or take.
Anything else I might need done to help out? Needle has dipped down a bit lower than usual for the 90ish km mark on my trip.
Advice would be appreciated. Thanks in advance!
|
| |
06-30-2012, 10:57 PM
|
#2 | iceboy & saucywoman are my parents!
Join Date: Sep 2011 Location: Ricemond
Posts: 1,384
Thanked 1,770 Times in 445 Posts
|
check ur wheel bearings and transmission fluid. also might be good to check ur cat to see if its clogged
__________________
[23-07, 02:53] LSF22 the guy who i just saw had like 5 or 6 cars on his lawn needs a ride
[07-10, 15:42] nabs tbails14 = the legend continues
[27-10, 19:44] slickrick (to ts14) NO NOT THE EXHAUST
[07-10, 22:42] Ri2 If I had a real one I'd fap til it turns blue probably
[05-01, 16:24] Geoc ts you're a never ending inspiration for the inner buddy guy in all of us
|
| |
07-01-2012, 01:08 AM
|
#3 | I don't get it
Join Date: Feb 2011 Location: New westminster
Posts: 409
Thanked 161 Times in 53 Posts
|
make sure also to change tire...new tire thread will save gas compared to bald tires. also get rid of items in car that will add weight.
|
| |
07-01-2012, 11:27 AM
|
#4 | Head of HR....have a seat on that couch
Join Date: Jan 2003 Location: Coquitlam
Posts: 21,864
Thanked 15,572 Times in 4,314 Posts
|
check/clean/adj or replace the plugs
__________________ feedback Originally posted by v.b. can we stop, my pussy hurts... Originally posted by asian_XL fliptuner, I am gonna grab ur dick and pee in your face, then rub shit all over my face...:lol Originally posted by Fei-Ji haha i can taste the cum in my mouth Originally posted by FastAnna when I was 13 I wanted to be a video hoe so bad RSUV #7 |
| |
07-01-2012, 12:00 PM
|
#5 | not the mod you're looking for
Join Date: Sep 2009
Posts: 3,741
Thanked 1,534 Times in 555 Posts
|
PCV valve!
|
| |
07-01-2012, 01:33 PM
|
#6 | Even when im right, revscene.net is still right!
Join Date: Feb 2005 Location: VEGAS
Posts: 1,387
Thanked 198 Times in 131 Posts
|
Check tire presure. I had one tire @ 10psi and. It cost me $15 more
To do the same route
|
| |
07-01-2012, 03:15 PM
|
#7 | Ready to be Man handled by RS!
Join Date: Jan 2011 Location: Vancouver
Posts: 80
Thanked 15 Times in 7 Posts
| Quote:
Originally Posted by mercyboy make sure also to change tire...new tire thread will save gas compared to bald tires. also get rid of items in car that will add weight. | how can new thread save gas? wouldn't cause more friction = use more gas?
|
| |
07-03-2012, 12:05 AM
|
#8 | Need to Seek Professional Help
Join Date: Jun 2010 Location: Vancouver
Posts: 1,076
Thanked 359 Times in 162 Posts
|
thanks for all the tips guys! unfortunately, im not sure i have the tools or know-how to do some of these things.
i do have new tires that was purchased november 2010 and havent been used all that much. and didnt have this poor of fuel efficiency during that time.
today on my way home from work i noticed a belt was squealing quite a bit during startup and continued even when i got home (10 min drive from a-b). not sure what to think of it. i do know my timing belt was done recent (around 198xxxkm, car currently at 204xxxkm)
|
| |
07-03-2012, 12:08 AM
|
#9 | RS.net, helping ugly ppl have sex since 2001
Join Date: Jan 2005 Location: Vancouver
Posts: 9,436
Thanked 3,493 Times in 1,158 Posts
|
Have you done a wheel alignment recently?
Cause when I did mines, fuel economy went up noticeably.
__________________ Quote:
Originally Posted by The_AK Or you meet some girl at the club, cum inside of her, find out shes only in grade 12, so you buy a Prada bag for her to make things right, she finds out the bag is a fake and decides to have the kid | Quote:
Originally Posted by RX_Renesis wtf did she get some bolt-on titties or what?
they look sooooooooooo much bigger than they were 2ish years ago. | Quote:
Originally Posted by nns I can't stand the sound of Mandarin either. Boo yow nee bey nee shing bo now noong gey shee mayo mayo mayo mayo mayo mayo mayo. | |
| |
07-03-2012, 02:30 PM
|
#10 | I contribute to threads in the offtopic forum
Join Date: Oct 2009 Location: richmond
Posts: 2,837
Thanked 1,490 Times in 570 Posts
| Quote:
Originally Posted by Smallermouse how can new thread save gas? wouldn't cause more friction = use more gas? | Less rolling resistance due to less rubber and harder compound stuck to the pavement. Quite often race tires are shaved for the exact opposite reason.
Many of the above are very valid reasons as well so check your tire pressure. In my Jeep if my tires are down to 10psi which looks the same as 30psi my mileage goes to shits.
__________________ Rise Auto Salon
11938 95a Ave Delta
I can be reached VIA text @ 778-232-1465 Oil change special $70 5 liters synthetic oil including OEM filter Fender rolling from $45 per fender Car Audio:
Focal, Morel, Genesis, Clarion, Scosche, Escort, Compustar, GReddy, Blitz, Tomei, Motul, Endless, Defi, Cusco, Nismo + More
We specialize in:
Custom Car Audio
Race/4x4 Fabrication
Forced Induction
Engine Swaps
General Maintenance |
| |
07-03-2012, 04:37 PM
|
#11 | Head of HR....have a seat on that couch
Join Date: Jan 2003 Location: Coquitlam
Posts: 21,864
Thanked 15,572 Times in 4,314 Posts
| Quote:
Originally Posted by impulseX
today on my way home from work i noticed a belt was squealing quite a bit during startup and continued even when i got home (10 min drive from a-b). not sure what to think of it. i do know my timing belt was done recent (around 198xxxkm, car currently at 204xxxkm) | Has your commute changed? 10 minutes doesn't exactly get your car hot enough to perform at its best. It's barely warmed up and then you shut it off. I wouldn't be surprised if there's significant carbon build up in the engine, your cat doesn't get hot enough to burn the extra fuel and the moisture in the exhaust just sits there.
__________________ feedback Originally posted by v.b. can we stop, my pussy hurts... Originally posted by asian_XL fliptuner, I am gonna grab ur dick and pee in your face, then rub shit all over my face...:lol Originally posted by Fei-Ji haha i can taste the cum in my mouth Originally posted by FastAnna when I was 13 I wanted to be a video hoe so bad RSUV #7 |
| |
07-03-2012, 09:15 PM
|
#12 | I contribute to threads in the offtopic forum
Join Date: Oct 2009 Location: richmond
Posts: 2,837
Thanked 1,490 Times in 570 Posts
|
the squeeling is your alternator belt. your short drive does not fully recharge your battery after startup demands and eventually the load on your alternator to charge a dying battery will cause the belt to stretch and squeel.
__________________ Rise Auto Salon
11938 95a Ave Delta
I can be reached VIA text @ 778-232-1465 Oil change special $70 5 liters synthetic oil including OEM filter Fender rolling from $45 per fender Car Audio:
Focal, Morel, Genesis, Clarion, Scosche, Escort, Compustar, GReddy, Blitz, Tomei, Motul, Endless, Defi, Cusco, Nismo + More
We specialize in:
Custom Car Audio
Race/4x4 Fabrication
Forced Induction
Engine Swaps
General Maintenance |
| |
07-04-2012, 02:37 PM
|
#13 | Where's my RS Christmas Lobster?!
Join Date: Jan 2010 Location: vancouver
Posts: 827
Thanked 184 Times in 106 Posts
|
Hi, I'm in the auto industry and may be of some help.
Check and if required, replace your EGR. Clean any EGR galleries under the valve cover. Check your tyre pressures every 2-3 days. Not only can it help mileage, you can also spot any possible punctures. Do your alignment once a year minimum. no matter what.
I noticed the plugs were changed. What about the plug wires?
next oil change, do an engine flush on it to clean out any crap. Every 2 months, run a bottle of injector cleaner with a fresh tank of fuel, preferably 91 octane. higher octane fuel burns a bit more stable at temperature. Combined with the cleaners, can help remove some carbon cloggage in your systems.
This one's important: DRIVE MORE. If you drive less than 15,000km a year, chances are, that there will be significant carbon deposits in your systems caused by excess amounts of unburnt fuel, etc. due to the car not running at optimal temperature enough.
once a week, take it on the highway, and give it a good rip for about 15-20minutes so everything heats up and the fluids get flowing. A car's like a person. Don't work it out enough then when you do, everything starts to have trouble working properly.
Your car's a 1998. Chances are it's got a bit of stuff in there.
|
| |
07-05-2012, 02:54 AM
|
#14 | Need to Seek Professional Help
Join Date: Jun 2010 Location: Vancouver
Posts: 1,076
Thanked 359 Times in 162 Posts
| Quote:
Originally Posted by ts14 check ur wheel bearings and transmission fluid. also might be good to check ur cat to see if its clogged | i'll take a look under the hood at the fluid. weather and work havent really been on my side lately Quote:
Originally Posted by mercyboy make sure also to change tire...new tire thread will save gas compared to bald tires. also get rid of items in car that will add weight. | got tires just last year and i have a set of winter tires so i dont think that should be the problem Quote:
Originally Posted by fliptuner check/clean/adj or replace the plugs | don't have the tools to do that i dont think. at least, not to adj them anyway Quote:
Originally Posted by FRESHvibe PCV valve! | sadly i dont even know where that is, or if it's something im capable of doing. scared of screwing up Quote:
Originally Posted by DavidNguyen Check tire presure. I had one tire @ 10psi and. It cost me $15 more
To do the same route | last time i checked they were good. i'll double check in the morning Quote:
Originally Posted by TypeRNammer Have you done a wheel alignment recently?
Cause when I did mines, fuel economy went up noticeably. | i havent. whats the ball park price figure for a service like that? Quote:
Originally Posted by fliptuner Has your commute changed? 10 minutes doesn't exactly get your car hot enough to perform at its best. It's barely warmed up and then you shut it off. I wouldn't be surprised if there's significant carbon build up in the engine, your cat doesn't get hot enough to burn the extra fuel and the moisture in the exhaust just sits there. | within the past 6 months i'd say i've driven a little less? my old commute to work was about 15 mins each way. sometimes i'd go out but not all too often. since leaving that job, my commute to work is about 10 minutes each way, mostly just getting on and off highway 1. Quote:
Originally Posted by Phil@rise the squeeling is your alternator belt. your short drive does not fully recharge your battery after startup demands and eventually the load on your alternator to charge a dying battery will cause the belt to stretch and squeel. | how often does the belt need to be replaced? is it something that would affect mileage? Quote:
Originally Posted by BallPeenHammer2 Hi, I'm in the auto industry and may be of some help.
Check and if required, replace your EGR. Clean any EGR galleries under the valve cover. Check your tyre pressures every 2-3 days. Not only can it help mileage, you can also spot any possible punctures. Do your alignment once a year minimum. no matter what.
I noticed the plugs were changed. What about the plug wires?
next oil change, do an engine flush on it to clean out any crap. Every 2 months, run a bottle of injector cleaner with a fresh tank of fuel, preferably 91 octane. higher octane fuel burns a bit more stable at temperature. Combined with the cleaners, can help remove some carbon cloggage in your systems.
This one's important: DRIVE MORE. If you drive less than 15,000km a year, chances are, that there will be significant carbon deposits in your systems caused by excess amounts of unburnt fuel, etc. due to the car not running at optimal temperature enough.
once a week, take it on the highway, and give it a good rip for about 15-20minutes so everything heats up and the fluids get flowing. A car's like a person. Don't work it out enough then when you do, everything starts to have trouble working properly.
Your car's a 1998. Chances are it's got a bit of stuff in there. | well, i just looked up what an egr is, and tried looking up something on youtube to give me an idea, but im not sure if its something i can do =[
plugs were changed about 3 years ago as i mentioned before. the wires... i can't say im certain, but i believe they were changed at rise when my distributor cap was replaced. and this was about a year ago
i'll definitely keep that in mind to take it out more. thanks! =D
Again, thank you all for your suggestions.. if anyone is willing to take some time and show me how to do some of these things i'll buy you dinner or something =D i'd love to learn how to do these things myself.
|
| |
07-06-2012, 12:10 PM
|
#15 | Rider
Join Date: Oct 2004 Location: bby
Posts: 3,669
Thanked 310 Times in 115 Posts
|
How's the thermostat doing? Mine was stuck open and lost about 50km per tank.
__________________
http://www.revscene.net/forums/dink-8-0-t263995.html
|
| |
07-08-2012, 10:33 PM
|
#16 | Where's my RS Christmas Lobster?!
Join Date: Aug 2010 Location: B.C
Posts: 871
Thanked 733 Times in 225 Posts
|
alternator belt squealing does not affect gas milage. to make sure its an alternator belt, squeal, pour some water or even spray wd-40 on the belt to see if the noise goes away. I would say take the throttle body out and give it a good cleaning and maybe the intake manifold too. Also try cleaning your fuel injectors, if you dont know how, you can try another method by filling up full tank of gas and pouring fuel injector cleaner into the tank. Like what typeRnammer said, maybe do an alignment if u havent done one before. usually alignment changes when ur spring sags down over time. one easy way to check is if ur steering wheel pulls to a side or not, but that doesnt tell u everything. check your tires for uneven wear pattern (negative/positive camber wear, toe in/out wear)
Last edited by i-vtecyo; 07-08-2012 at 10:46 PM.
|
| |
07-09-2012, 03:55 PM
|
#17 | Where's my RS Christmas Lobster?!
Join Date: Jan 2010 Location: vancouver
Posts: 827
Thanked 184 Times in 106 Posts
|
I can help you out with showing you around with your car. I'm also a bit of a weekend mechanic so I can teach you how to take certain things apart, and watch for signs of any issues.
You can call me up at 778-883-5489. Name's Dan.
This goes for anyone out there that requires a rundown on how car shit works, prices, what-to-look for, etc.
I've been in the industry for a few years, so I'm fairly confident as long as it's not luxury german or exotics (They require actual research and study with the dealer).
TypeR-nammer could vouch for me. A bit. LOL.
|
| |
07-09-2012, 06:03 PM
|
#18 | not the mod you're looking for
Join Date: Sep 2009
Posts: 3,741
Thanked 1,534 Times in 555 Posts
| Quote:
Originally Posted by impulseX sadly i dont even know where that is, or if it's something im capable of doing. scared of screwing up | Your PCV is located right above your oil filter. Best done when you're changing your oil. It's as easy as popping it out, and putting the hose back on it. How To: D16Y8 PCV Valve Change - ClubCivic.com - Honda Civic Forum
A lot easier than my WRX. To change mine, I have to remove my intercooler and get behind the throttle body |
| |
07-09-2012, 08:07 PM
|
#19 | Banned By Establishment
Join Date: Jan 2003 Location: Coquitlam, BC
Posts: 9,521
Thanked 1,289 Times in 409 Posts
|
Have you Concidered it's summer and warmer out, so you will be rolling with the a/c on or windows down far more often, which will reduce fuel economy.
|
| |
07-09-2012, 11:49 PM
|
#20 | Need to Seek Professional Help
Join Date: Jun 2010 Location: Vancouver
Posts: 1,076
Thanked 359 Times in 162 Posts
| Quote:
Originally Posted by Iceman-19 Have you Concidered it's summer and warmer out, so you will be rolling with the a/c on or windows down far more often, which will reduce fuel economy. | i don't use a/c for my car unless its absolutely necessary. otherwise i do have my windows down, but just in reference to last years summer, my mileage is worse this time around Quote:
Originally Posted by FRESHvibe | thanks! i tried looking on youtube about that, but no full on video, just like... a slideshow so it made me a bit weary about doing it myself Quote:
Originally Posted by BallPeenHammer2 I can help you out with showing you around with your car. I'm also a bit of a weekend mechanic so I can teach you how to take certain things apart, and watch for signs of any issues.
You can call me up at 778-883-5489. Name's Dan.
This goes for anyone out there that requires a rundown on how car shit works, prices, what-to-look for, etc.
I've been in the industry for a few years, so I'm fairly confident as long as it's not luxury german or exotics (They require actual research and study with the dealer).
TypeR-nammer could vouch for me. A bit. LOL. | i'll take you up on that! pm'd Quote:
Originally Posted by i-vtecyo alternator belt squealing does not affect gas milage. to make sure its an alternator belt, squeal, pour some water or even spray wd-40 on the belt to see if the noise goes away. I would say take the throttle body out and give it a good cleaning and maybe the intake manifold too. Also try cleaning your fuel injectors, if you dont know how, you can try another method by filling up full tank of gas and pouring fuel injector cleaner into the tank. Like what typeRnammer said, maybe do an alignment if u havent done one before. usually alignment changes when ur spring sags down over time. one easy way to check is if ur steering wheel pulls to a side or not, but that doesnt tell u everything. check your tires for uneven wear pattern (negative/positive camber wear, toe in/out wear) | as soon as i noticed the shitty mileage, i went and grabbed a bottle of the cleaner. hoping that helps a bit. looking forward to having a run-down with dan to learn more about my car =D Quote:
Originally Posted by dink How's the thermostat doing? Mine was stuck open and lost about 50km per tank. | i.... wish i knew where to look... |
| |
07-10-2012, 12:34 AM
|
#21 | RS.net, helping ugly ppl have sex since 2001
Join Date: Jan 2005 Location: Vancouver
Posts: 9,436
Thanked 3,493 Times in 1,158 Posts
| Quote:
Originally Posted by BallPeenHammer2 TypeR-nammer could vouch for me. A bit. LOL. |
Just kidding LOL
__________________ Quote:
Originally Posted by The_AK Or you meet some girl at the club, cum inside of her, find out shes only in grade 12, so you buy a Prada bag for her to make things right, she finds out the bag is a fake and decides to have the kid | Quote:
Originally Posted by RX_Renesis wtf did she get some bolt-on titties or what?
they look sooooooooooo much bigger than they were 2ish years ago. | Quote:
Originally Posted by nns I can't stand the sound of Mandarin either. Boo yow nee bey nee shing bo now noong gey shee mayo mayo mayo mayo mayo mayo mayo. | |
| |
07-10-2012, 10:45 AM
|
#22 | Where's my RS Christmas Lobster?!
Join Date: Jan 2010 Location: vancouver
Posts: 827
Thanked 184 Times in 106 Posts
|
^ TypeRNammer = master of douchebaggery. LOL
|
| |
07-10-2012, 10:47 AM
|
#23 | Where's my RS Christmas Lobster?!
Join Date: Jan 2010 Location: vancouver
Posts: 827
Thanked 184 Times in 106 Posts
|
OP: You won't be able to really see your thermostat. It's usually located where the main coolant hose goes into the motor. Someone'll have to point it out though because it's usually kinda hidden.
|
| |
07-13-2012, 02:32 AM
|
#24 | Fathered more RS members than anybody else. Who's your daddy?
Join Date: Aug 2002
Posts: 24,719
Thanked 11,497 Times in 4,892 Posts
|
It could be just shitty gas. A bad batch more than anything else.
Driving habits change. Weather (humidity, temp, etc) is also a factor. Carying more shit in your car.......... g/f or you getting a little heavier. Your car is getting older. Like humans...... I ain't as fast or as efficient as I used to be. Just throwing more stuff out there...........
|
| |
07-17-2012, 12:13 AM
|
#25 | NEWBIE ACCOUNT!
Join Date: Feb 2011 Location: Richmond BC
Posts: 20
Thanked 0 Times in 0 Posts
|
you should try the amsoil performance improver.. it cleans your fuel system and helps give better gas mileage! im using it and i love it
|
| | | |
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | All times are GMT -8. The time now is 05:06 AM. |