Runs fine when running usually, but then it'll cough quiver and shake then die. Upon trying to restart it will sometimes crank fast. Other times the engine hits but doesn't start. Have replaced coil map sensor, new distributor and rotor and button. No idea so any help would be greatly appreciated
SOURCE: 94 olds hard starts when warm, starts when cold and runs rich
If you can get a fuel pressure gauge, check and see if the pressure is 16 to 24 lbs after the engine has warmed up.
I would connect the pressure gauge when the engine is cold, make sure it does not leak or touch anything hot, place the gauge between the hood and the windshield and drive the vehicle until it is at the temperature you feel it "starts hard". Shut the engine off and try to repeat the no start or hard start and make sure the pressure is correct.
Also, when you shut the engine off, watch the pressure and make sure it holds and does not drop to (0 LBS) of pressure.
One last question, has the fuel filter been changed in the past 30K.
Let me know.
Regards,
SOURCE: Olds 2000 intrigue, when cold and even sometimes
hcmartini - did you mean you replaced the ignition switch behind the ignition key? How much would that cost?
SOURCE: 99 olds silhouette... changed plugs wires and coil
will try to help,are you sure the fuel pump comes on and runs through the whole cycle of turning key on for 10 seconds through at least 5 cycles? the timing light may be picking up the crankshaft positioning sensor signal, it's magnetic pulse. and then again you could be dealing with a bad timing chain or belt,most likely chain driven. am trying to help, but not sure unless i hear it onsite. at least this may point you to something. sorry at no charge, hope this helps and thank you for choosing fixya.com if no help please repost!!!1
Hello! I need the trouble code...The vehicle is an On Board Diagnostic 1 (OBD!)...You can not use a scanner on an OBD1...See drawing below of connector under the steering wheel...Short pins A to B...Turn on the key...Don't start the engine...Light on dash will flash the code ie...4 long blinks...pause... 1 short blink=code 41...each code, if more tan one, will flash 3 times...record the code # and send it to me and I'll fix the problem....codes are all two digit... guru...saailer
I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867
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