1995 Buick won't start

DEHALL762

MEMBER
1995 BUICK RENDEZVOUS

Good spark, Steady 40 Lbs working gas presasure, all vacuum lines are new and vacuum checked, intake manifold Gasket vacuum checked, strong cranking, Cam and Crank shaft sensors have not been checked, so is there any reason that would cause the engine not to start. [U:23e09733c9]History[/u:23e09733c9], the engine did start and wouldren for 30 seconds and cut off but the gas pressure would remain steady at 40 lbs. That caused the changing of all vacuum lines and testing. The engine than started and ran perfectly for over 10 min and was turned off assuming that it was fixed. The next day nothing, no pop, strong cranking, strong spark, and no start, nothing. What could cause the engine not to start? :( ?[/B]

1 Reply

DEERAYROSE

MEMBER
25 POSTS

Definetlly check those sensors you mentioned having not checked. Instructions for your model can be found online.

Just a guess, but it does sound like a sensor problem. Sensors are delicate, even though they seem to be working, heat and vibration can cause a bad one to mess up at an unexpected time.

When you get the car running, try tapping one some of the sensors (lightly) with the handle of a screwdriver. If you get any misfires, hesitations, or anything abnormal (including while viewing output on a voltometer or ohmeter) it's a sign of a problem.

Have you had the codes checked? Even if there's no service light on, the computer could still have usefull stored codes that may direct you to the problem.