Help: Exhaust valve change .. problems!!
Had a problem with my car about a week ago, engine light came on flashing on and off so I took it into the mechanic immediately (noticed the engine was also shaking at idle, but when we pulled on the throttle it stopped shaking...) After a while they determined it was due to a hole in one of my exhaust valves.
Everything below happened within the last day.
They ended up removing, machining and reinstalling the cylinder (with head gasket set/oil/antifreeze change)
Engine light was gone and all when I went to pick it up, and after driving it for about 2-3 kms when my engine typically warms down, I noticed the RPM at idle was 1.5k (normal idle before the whole incident was 800-900 RPM)... I thought strange...
After another 30 km the light came on again.. this time the check engine light wasn't flashing, it was just a flat light that stays on. I already dropped $1.4k trying to figure out the problem and I'm not happy with this outcome. I notice now that my car doesn't have much power if I'm in gear with RPM below 2000 (which it usually does)...
Anyone have any idea what could be wrong?? Did they install the valve incorrectly?? Any ideas would be helpful.
A side note:
- All my other valves and cylinders are in perfect condition (as per mechanic)
- Routine fluid changes have been done almost religiously on this car
- 99 civic SiR with 150,000 kms total