Car stalls, now it will not start?

2001 CHEVROLET MONTE CARLO

200,000 MILES • 3.8L • V6 • 2WD • AUTOMATIC

#1TROUBLE

MEMBER
1 POST

In the beginning idle fluctuated. Then it started shutting off at times but would restart. Finally, it wouldn't restart. I did a bunch of research and ended up cleaning the idle control valve. It worked great for a few days. Then it stalled and wouldn't restart. Pulled the ICV and recleaned it. Sprayed the shit out of it with WD40 (the pentel shaft) and for a week it was perfect. Then it was back to stalling and now no start. Bought a new ICV but it still won't start. I came to realize I can't hear the fuel pump when I turn the key on, so I checked fuses, the relay and I'm about to replace the fuel pump. (If I have 12v to the pump). Any suggestions? Thanks, Charles

Sep 5, 2022 at 7:24 PM

BORIS K

✓Experienced Mechanic
836 POSTS

Hello,

At the fuel pump you should have 12V on pin B, grey wire, with ignition on.
Remember this 12V will only be there for about 2-3 seconds to prime the fuel system without the engine running. Otherwise, you will need to get a helper to crank the engine while you test for 12V at the grey wire

To check use a suitable test light or voltmeter.

How to use:
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/how-to-use-a-voltmeter

See wiring diagram on image below.

Hope this helps.

Cheers, Boris

Image (Click to enlarge)

Professional Diagram for 2CarPros Members
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Sep 6, 2022 at 2:19 AM

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