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Chevy Blazer/GMC Jimmy

508 messages,  Last post on Oct 04, 2009 at 2:53 AM

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What is this discussion about? Chevrolet Blazer, GMC Jimmy, SUV

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#506 of 508 Re: Confusion sets in...1995 Gmc Jimmy [mmorga24] by jlflemmons Sep 23, 2009 (10:49 am)
Replying to: mmorga24 (Sep 23, 2009 6:33 am) Okay, before you change the fuel pump, get where you can listen to the fuel tank and have someone turn the key to RUN, not start, and see if you hear the fuel pump run for a second or two and then stop. The fuel pump runs a "prime" cycle to pressurize the fuel system before starting. Once the engine starts, a different circuit kicks in and keeps the fuel pump running. The clue here is that if you shoot starter fluid to it, it starts and then runs okay.   Another dirty little trick; if you do not hear the pump "prime", take your foot and kick the bottom of the fuel tank. Don't try and cave it in, just give it a good thump. Then cycle the key and see if you here the pump prime, and start. Common failure in GM fuel pumps for years is that they get "stuck" and won't spin up. Give 'em a good thump and they will work again. For a while. Once they get to this point it's time to change them out. I have seen this on pumps with less than 50K miles on them.   Good luck
#507 of 508 Re: Hard Starting "96 Jimmy SLE [96sle] by navigator7 Oct 01, 2009 (7:16 pm)
Replying to: 96sle (May 30, 2005 10:06 am) Please Help!! I am having the same troubles you mentioned with my Blazer and wondered if you ever figured out the problem.
#508 of 508 Re: Can anyone help with this?? [sfsmith1] by mikey153 Oct 04, 2009 (2:53 am)
Replying to: sfsmith1 (Oct 03, 2001 10:38 pm) We had a lot of that abs/brake light. stopped in the middle of Road crap. And no one could fix it. after a tip from a friend to unplug all cables to computer (right side of engine) clean them with a electric cleaning spray and use Di electirc Grease in the connections. I used large wire ties around plugs and the computer to make sure they were tight. No more problems after 2 years of nightmare a little grease and some wire ties Good to go.

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