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Chevy Blazer GMC Jimmy Maintenance and Repair

3449 messages,  Last post on Nov 07, 2009 at 8:55 AM

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#3247 of 3449 Blazer Starting Issue by jpmccr Aug 03, 2008 (11:34 am)
2001 Blazer 4X4, 120,630 miles. Problem: refuses to start. New battery, altenator; starter is turning over engine. It sounds like it wants to start however it will not "catch". Where should I check first? Wires, plugs, distributor cap, rotor??? I have changed any of the above in a while (really long while). Any ideas would be greatly appreciated!!!!!! I really need to get this thing up and running. Replies to this message: jpmccr (Aug 04, 2008 1:29 pm) jpmccr (Aug 14, 2008 12:53 pm) duntov (Aug 14, 2008 2:24 pm)
#3248 of 3449 Re: Blazer Starting Issue [jpmccr] by jpmccr Aug 04, 2008 (1:29 pm)
Replying to: jpmccr (Aug 03, 2008 11:34 am) Now for the strange thing. It sat since Friday morning when this all started. It didn’t start. We took off for the weekend in my wife’s car and came back Sunday. Tried again. No luck. Got up this morning and again it wouldn’t start. Then I got thinking did I hear the fuel pump “whine up” as I call it. Well I tried it and sure enough it was, which to me meant at least the pump was doing something. I did it twice. Then just for grins and giggles, I tried to start it. It fired right up!!!!!!!!!!!!!! Have no idea unless my fuel filter was clogged and I broke something loose. So this weekend I am going to replace the fuel filter and run a fuel treatment/injector cleaner through the system. Replies to this message: jpmccr (Aug 14, 2008 12:53 pm) duntov (Aug 14, 2008 2:24 pm)
#3249 of 3449 Re: Blazer Starting Issue [jpmccr] by jpmccr Aug 14, 2008 (12:53 pm)
Replying to: jpmccr (Aug 04, 2008 1:29 pm) Ok, it has to be the fuel pump. It did start and ran great for three days. Then the same thing. I did get stranded but it was at work so no foul. I finally got it to turn over so the wife and I went back to my office and I drove it home. Now that it is here, I can search for a fuel filter and if I am lucky have it start just one more time so I can drive it to the shop and not have to have it towed there. Any suggestions on where to look and what a good price would be? Thanks. Replies to this message: duntov (Aug 14, 2008 2:24 pm)
#3250 of 3449 Re: Blazer Starting Issue [jpmccr] by duntov Aug 14, 2008 (2:24 pm)
Replying to: jpmccr (Aug 14, 2008 12:53 pm) NAPA has good products. The NAPA premium 65 lb. output fuel pump is $95 including seals. NAPA fuel pump strainer is $8 and fuel pump wiring harness is $10. All those items should be replaced when the fuel pump is replaced or the new fuel pump will prematurely fail again.
#3251 of 3449 Chevy blazer headlight replacement by kennethg Aug 16, 2008 (5:47 pm)
I am trying to change the passenger side head light with little success - tried to remove the battery to get to it with no success - can you help resolve my issue ?   Lights out in missouri Replies to this message: duntov (Aug 17, 2008 9:15 am) jlflemmons (Aug 17, 2008 3:32 pm)
#3253 of 3449 Re: Chevy blazer headlight replacement [kennethg] by duntov Aug 17, 2008 (9:15 am)
Replying to: kennethg (Aug 16, 2008 5:47 pm) I can change a 1991 Blazer headlight blindfolded. They can b e replaced from the front just like all GM headlights have been replaced as far back at 1948. All you need is a wire coathanger with a little hook on the end, a long, thin, flat-blade screwdriver and a little stool to sit on. Reach in with the hooked-end coathanger to pull out the headlight spring and unhook it from the headlight retaining ring, unscrew the two headlight ring attachment screws from the headlight ring , pull out the headlight and unplug it from the wiring harness. . Then reassemble it in reverse. Don't remove or unscrew the headlight aiming screws.   You probably have the "new and improved" headlight assemblies.. I have never replaced the whole headlight assembly on one of those but the little bulb is the twist in type that twists into the socket hole in the headlight assembly. I assume you are having a problem finding the headlight socket hiole. The headlight bulbs on the other later model cars I have replaced does not require removing the whole headlight assembly. Don't touch the new bulb with your fingers or it will prematurely fail. Those little twist in headlight bulbs burn hotter and the oil from your fingers will cause the glass to fracture.
#3254 of 3449 Re: Chevy blazer headlight replacement [kennethg] by jlflemmons Aug 17, 2008 (3:32 pm)
Replying to: kennethg (Aug 16, 2008 5:47 pm) What year model? The newer (96 and newer) just use two tabs that are pulled up and release the headlight assembly. Bulb change takes less than 5 minutes.
#3255 of 3449 Spark plugs, 1996 GMC Jimmy by friend2 Aug 19, 2008 (4:47 pm)
I recently bought a '96 Jimmy for my son. We have been looking at fuel economy and I thought we should look at the spark plugs to see what kind of shape they are in. This is a 4 x 4 with 87600 miles on it.   I am embarrassed to say I could not trace down the spark plugs. I need someone to tell me where they are located at on the engine. Also the best way of pulling each of them.   It is the 4.3L, V6.   Thank you Replies to this message: jlflemmons (Aug 19, 2008 7:56 pm) johnss10 (Aug 20, 2008 3:25 pm) friend2 (Aug 20, 2008 3:35 pm) duntov (Aug 20, 2008 3:58 pm)
#3256 of 3449 Re: Spark plugs, 1996 GMC Jimmy [friend2] by jlflemmons Aug 19, 2008 (7:56 pm)
Replying to: friend2 (Aug 19, 2008 4:47 pm) It's a Chevy engine, and the plugs are under the exhaust manifolds instead of above. Most are easy to get to, except the #3. That's the middle plug on the drivers side. Easiest way to get that one out is to disconnect the steering shaft from the steering gearbox and move the shaft out of the way an inch or so.   Be sure and put platinum tip plugs back in. They will last a good 75K miles or more. Also be sure to change the rotor and cap. The rotors will cook off twice as fast as the plugs. Easy to change, and should be done every 50K at least. Replies to this message: johnss10 (Aug 20, 2008 3:25 pm) friend2 (Aug 20, 2008 3:35 pm) duntov (Aug 20, 2008 3:58 pm)

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