Quote:
Originally Posted by mact
Boy would I love the answer to this. Could be spmething as simple as dirty break-in oil with new engine "shavings" or a bad ECU.
|
Quote:
Originally Posted by ahausheer
Do we know what the actual problem is? We know what parts are being replaced and what the CEL indicates, but what is causing the root of the issue? Is it a clogged VVTi actuator (whatever that is)?
|
Coming from a maintenance perspective (planes, not cars
), I was wondering the same thing.
60000 miles ago, the Hyundai beater commuter I have had the exact same problem: would throw a CEL and just didn't give the smoothest acceleration off the line. It was drivable regardless. Took it in to a dealer I trusted and same thing happened to me- car in the shop for days, they did all sorts of checks, couldn't find anything remotely wrong, reset ECU, cleaned out injectors and replaced spark plugs for precautionary, send me on the way.
2 days later, CEL came back on, so car went back in for a whole week this time. A Hyundai Engineer was even flown over to troubleshoot the damn thing because the shop had done everything they could for troubleshooting.
Turns out, the timing belt had been installed a tooth or two out from TDC by my "mechanic" co worker. They never would have thought of this because I specifically asked for them to leave out the timing belt (they were charging me an arm, leg and my newborn at the dealership) during the 60k maintenance prior to all this. CEL subsequently cleared and never came back since. Needless to say, I never asked my mechanic friend for any help again.
So long story short, perhaps this is a similar situation during line assembly for certain batch numbers? Just my 2 cents.