Question about 2000 GMC Safari

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2000 gmc safari van

My van is dieing while im driving it down the rd.I changed fuel filter,and mechanic said fuel preasure was good.it will die after 40 miles or 20miles down the rd.if i do have to replace fuel module do i have to drop tank or can i grind a hole above it. thanks

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  • allenfrierso Mar 23, 2009

    removing the 4.3 engine from 2000 gmc safari van

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My ac/heater air only comes out of the windshield defrost vent...I think is caused by a non woking vacum hose?...what is the fix?

Posted on Apr 27, 2009

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Up to you about grinding . Easier to drop tank and check all elctricals. Nephew didnt and had a short. Almost blew up. Had a similar problem with motor cutting off. My problem was a diode in the alternator

Posted on Sep 01, 2008

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What makes 2001 Pontiac Montana stall and die while driving, speed doesn't matter?


Amazing.....At this very moment in time.....my 2000 silhouette is doing the same thing....if you were unaware.....ventures Montana's and silhouette are from the same mold. Very similar in all aspects. My diagnostics have got to the fuel pump part of suspects....but I have already checked filter, relays, fuses and ignition electronics....my latest suspect is the pressure sensor that monitors the pressure of the gas tank....there is also a pressure sensor on the injector rail I'm suspicious of. I'm going to find out how to place each sensor in "okay ....fuel pump turn on and pump fuel to the throttle body" to check them. In my case....I don't smell any gas after turning the engine over....trying to start it.....sometimes for over an hour....never any gas smell....so I suspect fuel delivery is the problem. The fuel pump has several sensors that control whether or not it needs to run....and pump gas. I can hear my fuel pump run for 2 or3 seconds when I turn the ignition to the on or start positions.testing all of those sensors is my plan of action for this 3 day weekend. Your on track with your work and suspicion of the position sensors......vacuum leaks will follow the sensor checks. Vacuum leaks could cause a couple of sensors to fail too.....I dropped my fuel tank last weekend....and found the fuel pump to be in working condition.....I removed my fuel filter and punched a hole through it for free flow.....to eliminate it from the list...after checking the vacuum angle....I will move to the electronics side.....with the ignition switch first and the transmission position indicator switch following.....I've plugged my trouble code reader in and didn't get any indication of any failed electronic devices......my problem and your problem seem to be very similar, except that I am doing all of my work on the van myself. I will try to keep you informed of my diagnostics through fix it.it would be nice to know how yours is advancing too.....there are a few directions you can progress into.....hope one solves your problem....if not.....there will be more ideas to come....until I solve my problem....good luck to. Us both and onward we go......Nick.ps couldn't spell or grammar check because I'm using my phone to compose....and the typing pad covers the entirescript being typed. Sorry for any problems. Associated

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