After engine wash car started o.k. a bit rough, but 2 minutes later it run nice and smooth.then check engine light come on, half hour later it started flashing and now is flashing all the time(about a week) i checked wires, connectors, hoses, but no luck.car starts and drive very nice...any suggestion? thank you.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
If your check engine light comes on get it checked. To me it sounds like an engine misfire probably cause by a coil pack or spark plug wire going bad. The misfire should cause the check engine light to come on maybe even flash if the misfire is bad enough
If it is running rough & no check engine light on then the first thing I would to is tune it up. If you have a check engine light then pay someone to diagnosis it & go from there. Usually when the light comes on there is a more promenient issue; that is WHY the light continues to flash.
My guess would be that the valve timing is off. Did he machine the heads at a machine shop? Have the valves checked/done? New head gasket? New head bolts? What year is it? It sounds like you may have 2 different issues with the starting and it running rough...however, does it smooth out after you let it warm up? Is there an engine light on in the car? What are the codes?
Check wiring harness to fuel injectors where it runs through intake manifold - these chafe through and cause injectors to stay on or off. Also check engine grounds. 2 at back of head near firewall and one at drivers side engine mount (almost impossible to see)