99 grand am se w/170000 on a 3.4L, on several occations my car hass shut off or dog for power. Today it shut off with no electrical failure, and not it will not refire. It turns over but pops and back fires, we tried to run it on ether to see if it was a fuel problem but it still would not run. It brought up a P302 number 2 cylender missfire, could i have jumped the timing chain?
- 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.
You need to reset the security system. Try to start it. The light will blink. Leave the key in the run position until the light stops blinking. It will take about 11 minutes. Shut the key off. On the next key cycle the system will reset and the car should start and run.
Solved most of this myself. Changed ING. module which solved spark problem. The injectors still would not function, help came from JUSTANSWERS by idenifying a relay tucked between the left headlight motor and the coolant recovery canister. Like the IGN. module, this relays not cheap. I found a $5 dollar used replacement from a self-pull wrecking yard from it's sister car, a 1988 mazda 323.
Sounds like your security system is shutting the car down. You should be able to leave the key on for 15 minutes and it will reset itself. Make sure you are using factory keys, and they are in good condition.
Check all battery connections, wiring at alternator, for scorched ends, loose and/or corroded connections, as well as any power distribution boxes under hood. take close look at belt(s) for scorched or burnt edges, or deep grooves, as sign of trouble.Personally if I didn't find anything obvious, I would remove belt (s) and try moving all pulleys & idlers by hand, and feel for binding etc. When that's done, if you must, have someone start & be ready to shut it down quickly, as you observe pulleys, belts etc.