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Chevy Blazer GMC Jimmy Electrical Problems

472 messages,  Last post on Nov 19, 2009 at 4:18 PM

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#306 of 472 Re: Blazer electrical problems [pgarrett2] by judastouch Apr 09, 2008 (11:18 pm)
Replying to: pgarrett2 (Apr 09, 2008 11:15 am) Hey shirt,   I *think* it was indeed the fuel pressure regulator (FPR), though I can't say with 100% certainty.   I didn't have an extension cord long enough to reach the parking lot, so I filled a large Zip-loc bag with hot water and set it over top of the FPR and left it for about 20-30 minutes. It fired right up. The reason I'm not certain the problem was the FPR is because we've warmed up a bit here--it was probably almost 45 F when I did this (it was not starting at about 40 and under). So, it might have been the FPR, or it might have been some other part that was warm enough at 45.   I thought about trying to start it without first warming up the FPR, but I knew that if it didn't start I was going to flood it, and I was afraid it wouldn't start even after I'd warmed it up.   I went ahead and ordered a new FPR, but I think spring has sprung, and I won't know for sure if that was the problem until next winter.
#307 of 472 Re: GMC JIMMY [ktcim1] by blackhawk05 May 22, 2008 (6:50 am)
Replying to: ktcim1 (Mar 18, 2008 2:29 pm) I am having the same problem on my 96 Blazer - 4.3L, 153,000 miles. It will crank over, but not fire. Sometimes will start after several minutes of cranking/waiting, but will always start when jumped. Battery is new, new fuel filter. Mechanic said there was no ignition system problems, but the fuel pressure was 45-50 lbs. From reading other posts, this could be an issue. Any suggestions? Replies to this message: judastouch (May 27, 2008 1:52 am) jlflemmons (May 27, 2008 4:28 am)
#308 of 472 Re: GMC JIMMY [blackhawk05] by judastouch May 27, 2008 (1:52 am)
Replying to: blackhawk05 (May 22, 2008 6:50 am) I have to go back and revisit my answer: my problem probably was NOT the FPR. I did get a chance to let it sit for a few days while I awaited the new FPR in the mail. Wouldn't start. Mechanic then told me that while he thought he had swapped out the distributor cap before while trouble-shooting, it turns out there had been a miscommunication with one of his guys, and they hadn't swapped it out, so they tried that. I recently left it sitting for a week while I was out of town, and it happened to be a pretty cold week: in the 40s, the perfect environment for this elusive problem of mine to crop up. Truck fired right up, and has been firing up with no problems since then. The old distributor cap was less than 18 months old and couldn't have had more than 5,000 miles on it, but it certainly seems that was the issue. Luck. Replies to this message: jlflemmons (May 27, 2008 4:28 am)
#309 of 472 Re: GMC JIMMY [judastouch] by jlflemmons May 27, 2008 (4:28 am)
Replying to: judastouch (May 27, 2008 1:52 am) As simple as the component is, and with no moving parts, I have learned over the years that all distributor caps are not created equal. For one thing, the shape of the contacts and their relative spacing to the rotor contact can change the dynamic timing in the engine.   I have had to buy off-brand ignition parts before when caught in an out of the way location and was surprised to see the difference. Even a set of points for something as common as a Ford 200ci 6cyl seemed simple enough until they flew apart at a screaming 3000RPM.   Glad you are up and running, and hope that cures the gremlin.
#311 of 472 Altenator wiring? by altenatorcrap Jul 11, 2008 (8:12 pm)
85 Blazer 350 4x4- New Altenator-Battery-Battery wiring and terminals- New Alt Plug- New Starter- ----Altenator power only randomly gets to the battery- Can I just straight wire it some way. How can this even happen?
#313 of 472 Hazzard light button by mrafindley Jul 13, 2008 (6:48 pm)
Help my button on my hazzard lights popped out of the column and a spring flew accross the cab. My 4 ways will not shut off now. I stuck an ink pen to hold the button down under the dash. I priced the switch and they want 230 dollars for the whole piece because it controlls the wipers, 4 ways, blinkers, and cruise. Is there any place just to but the red button and spring? 1997 s-10 blazer 2wd Replies to this message: pvanaman (Jul 14, 2008 10:07 am)
#314 of 472 Re: Hazzard light button [mrafindley] by pvanaman Jul 14, 2008 (10:07 am)
Replying to: mrafindley (Jul 13, 2008 6:48 pm) Go to the Chevy dealer parts dept, ask for the GM hazard switch repair kit (part # 15174447) it just pops in, no tools required, cost is $9.
#315 of 472 Turn signal, brake lights and hazard not working by bobbyburrell Jul 14, 2008 (4:35 pm)
I recently "inherited" a 96 Chevy Blazer. The biggest problem is that the brake lights do not come on nor do the turn signals. The hazard lights also do not work as the button is broke off in the column. Can anyone advise where I should start or where to locate some likely causes? Any help would be greatly appreciated. bobby Replies to this message: pvanaman (Jul 15, 2008 3:08 am)

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