Engine died at 55 m.p.h, cylinders getting gas, compression good, spark coming from coil packs. Almost sounds like it's trying to start sometimes, no backfire. No rattle from the timing chain area, car has less than 80k. No idiot lights came on when engine died.
-Possibly crank sensor went bad.
Good Luck
Mai
SOURCE: jumped timing?
It really does sound like the timing went out of whack. The timing belt should be replaced periodically, according to your owner's manual. It may have worn and stretched just enough to slip over a cog a bit. Remove the timing belt covers and check the alignment of your cam and crank. There should be subtle marks on the cogs and the rear cover or casting. The compression will be good during a cranking test, but will not be ok during a running compression check. Replace the timing belt and check the pulleys. If your timing belt did not slip, the timing chain tensioner or guide shoes may be worn and will require replacement.
SOURCE: 1994 pontiac transport se not firing in first coil pack at idle
ARE YOU CHEKING SPARK OFF THE COIL TOWER OR AT THE SPARK PLUG END OF THE WIRE SOUNDS LIKE YO HAVE A BAD WIRE
SOURCE: 1992 pontiac starts, quietly dies and backfires loudly on restart
It sounds like to me you are having problems with your fuel injectors. In situations like these there are soooooo many different variables and possible problems, but the fact that the car is backfiring makes me believe that you are getting too much fuel in because that is what makes are car backfire. When fuel makes it to the cat converter or muffler it will burn there and cause the backfire. My suggestion would be to start the process of elimination with a good fuel injector cleaner. The only one that recommend is called Greased Lightening and can be purchased at Napa and O'Reilley auto parts. If you don't have one of these near you I would go with Techron. Let me know if I can help you with anything else. Thanks for letting me help you with your problem and I would appreciate an honest rating on the help that I gave you. Thanks for using FixYa!
SOURCE: 1998 Pontiac Bonneville SE 3.8L Backfires/ Sputters
sounds like the ignition module is going bad.
243 views
Usually answered in minutes!
Thanks so much!
×