Question about GMC Cars & Trucks
Truck turns over but will not start, onc it starts it usuallyrunsand ranks further whole day, but sits how d ayor at crank the next day, any suggestions
-Take a look at the battery CCA (Cold crank amperage). Sounds like
it's low amp.
-If it click but not start or turn that mean the starter has dirty contact or bad connector between battery and starter.
Posted on May 09, 2014
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Posted on Jan 02, 2017
With the upper plenum removed and spark disabled turn on the key and allow the fuel pump to prime while watching the fuel lines from the back of the intake to the injector. I suspect you lines are leaking. Have seen this before. ALOT.
Posted on Nov 27, 2008
there is also a cam sensor and throttle position sensor, any codes, fuel npump can test ok but jeeps are noted to have the fuel tank sock come off in the tank and the fuel pumps can have intermittent starting problems. I hope thiis helps
Posted on Sep 17, 2009
Sounds like one of two problems, The first would be a sticking throttle plate, you can fix this if you did the things you mentioned above to do so all you need to do is get to the throttle plate and with carburetor cleaner or top engine cleaner you can buy from any GM dealer Use a tooth brush to clean the throttle plate inside and outside and the ring the plate after you get it clean put it t gether and start it and get it warm next pull a hose feeding into the intake and put it in the can of Top engine cleaner and allow the cleaner to be sucked into the engine until it is all in the engine and shut off and let sit for 20 minutes. The start it up and run it till it's running smoothly now run it for the day and let it sit over night, try starting it, if it does you found the problem and fixed it if it does not start then do this push the throttle plate down to the floor and hold and crank over if it starts your set if it still has the gas smell in the morning check the cold start valve and see if gas is running out of it if it is then the cold start valve may have to be replaced. you also need to check the engine one more time and see if the EGR valve is sticking open after it turns off and cools down. Hope this helps thanks for using fix-ya and write back if you need more help.
Posted on Sep 21, 2010
SOURCE: 2000 GMC Safari Van Tries
I have been having the same problem with my 2000 Safari too. I change the distributor cap and rotor and the problem is gone for ~ 5000 miles or so. It started happening about 1.5 yrs ago.
I've read about problems with the vent on the distributor(small screen on the bottom) that gets clogged and gretly shortens the life of the cap/rotor.
Posted on Feb 12, 2011
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