Question about 1993 Pontiac Bonneville
It has continue to do this while driving, I have checked the fuel pump thats fine, my batterie is fine, My filter is not plugged so could it be the censer or something to do with the fuel filter?
Go with failed fuel pump, until you know how to test it.
It is seizing up mechanically or electrically
Check things HOW?
You need fuel pressure gauge,volt meter,oscilloscope
& such, to do testing,as well as wiring diagrams
Posted on May 10, 2014
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Posted on Jan 02, 2017
SOURCE: cranks but wont start cold
I suggest you STOP useing starting fluid NOW,,,if not sooner.
Are there any current diagnostic trouble codes?
Is the theft or security light flashing on the instrument panel when you try to start the car? Is the cat converter restricted or plugged?
You replaced EVERY sensor includeing crank sensor? The ECM you installed, was it a new one or used?
Was the the Security Relearn Procedure performed after you installed it?
Fuel pressure regulator tested and operational per mfrs. specs? The ground on the coil packs clean and secure?
Give me some more information...i will try to help fixya.
Posted on May 20, 2009
why was the sub frame replaced was the car in a wreck? i would check and see if any grounds were left off or broken.next test for a vacuum leak at intake. and or vac. hoses installed incorrectly.if you have a large library in your town you can look up repair manuals and look for a vac. hose routing. you should also perform a fuel pressure test.and yes you could have a bad crank sensor,which would cause your symptoms.i hope this will help you.
Posted on Oct 27, 2009
There are a few other things taht could be causing fuel starvation. First of all, did you pull the injectors and clean out the individual filters? There are small, conical screens inside the top of each injector, and they could be clogged. Second, There could be some carbon build-up on the intake valves, which would act like a sponge for the fuel after initial start-up. A can of BG44K fuel system cleaner from NAPA will get rid of that. If it is neither of these, the fuel pressure regulator could be leaking. Other than this, the car would need to be diagnosed by a shop before action is taken. I hope this helps you!
Posted on Dec 04, 2009
Testimonial: "I ended up taking the car to a local shop for diagnosis. It turns out that the fuel pump is week and not supplying enough pressure to the motor. "
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