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Chevy Blazer GMC Jimmy Maintenance and Repair

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

You are in the Chevrolet Blazer Forum. Your Hosts are steve_ & tidester

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


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#3106 of 3449
Re: Ooops! Gas lines frooze!! [scottyj686] by jlflemmons
Jan 04, 2008 (5:18 pm)
Reply

Replying to: scottyj686 (Jan 04, 2008 10:21 am)

These engines have a history of intake gaskets leaking coolant. I was told today by a dealer that mine has started leaking, but I sure don't see it. The antifreeze level hasn't changed, and there is nothing in the oil.
 
I had it at the shop as both motor mounts broke. I was all set to do the repair myself when I realized that I didn't have the tools to get into the very tight quarters. Glad I sent it over to them. Cost me $200, but it took them over four hours to get them swapped out. The tech said what I already knew. If only one is broken, you can lift the engine from underneath and it will pivot on the good mount and give you working room. If both are broken, the whole shooting match has to go straight up a couple of inches to get clearance. Took me about 20 minutes to figure out I didn't want to spend a day on my back fighting with that sucker. In case you hadn't noticed, that is one big honkin V6 to fit into such a small engine compartment!
#3107 of 3449
Re: Engine Noise [scout123] by benjimin
Jan 05, 2008 (11:55 am)
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Replying to: scout123 (May 28, 2004 3:41 am)

Did the timing chain fix your noise problem? I have the same symptom but was never told of this problem by the dealer.
 
My 2003 Jimmy sls 4.3 liter engine has an almost constantly pinging sound (similar to a dieseling sound) when cruising. It goes away when I accelerate. I also have a 2001 slx which is starting to do exactly the same thing but not as bad.
 
Both start well, run well (other than the sound) and have lots of power. The 2003 has 45,000 miles on it and the 2001 has about 80,000 miles. Both have the original plugs, etc. I usually run regular gas (with 10% ethanol) but I have recently run several tanks of the highest test gas I can find with no noticeable difference.
 
I'm concerned this will escalate into a bigger problem, head, valves, etc., if not resolved.
 
Ben
#3108 of 3449
Fuel pump fixed... by 00jimmy
Jan 07, 2008 (12:05 pm)
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After replacing several fuel pumps in less than a year, we looked at other problems which could cause the pump to stop working. It turned out in our case that one of the connections on the plug was corroded. It seems the bad connection to ground was our problem. Just cleaned it up and added a bit of dielectric grease. Hopefully it will run for a while now...
#3109 of 3449
ignition problems by morenolm
Jan 08, 2008 (9:14 am)
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I have a 98 Jiimy 4.3. About a month ago it started having problems starting. No engine comes on. Had the ignition module, the regulator, coil, distributor cap switched. The battery, alternator, starter, and the fuses are all good. There is a alarm attached can this hae anything to do with it.
#3110 of 3449
Re: ignition problems [morenolm] by 0128
Jan 14, 2008 (5:08 am)
Reply

Replying to: morenolm (Jan 08, 2008 9:14 am)

If your alarm has a "kill switch" function, it can certainly disable your ignition. If it is an aftermarket alarm, check with your installer / shop / or look up the manufacturer online for trouble shooting.
#3111 of 3449
Fuse trouble by c5nut
Jan 16, 2008 (3:55 pm)
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I have a 2000 Blazer and for the pastweek I've gone thru 5 10 amp fuses for the courtesy lights. I've read some posts about this but still unsure where to start. I've read a few posts that suggest checking grounds for the connected components (lamps) but, where are they? Are they near the bulb fixtures themselves? Thanks
#3112 of 3449
Re: Spark Plugs [clancy1] by murphy51
Jan 17, 2008 (5:19 pm)
Reply

Replying to: clancy1 (Feb 04, 2006 4:04 pm)

Found it easy to replace that plug if you unbolt the steering box and pry it up out of the way.
Only 3 bolts on side of frame to unbolt the gearbox.
These things are the biggest piece of crap ever built.Designed to fail.No wonder GM is in trouble.
Between the multitudes of problems with these blazers,they can't make a decent tranny and use the crappy orange dexcool antifreeze which destroys the whole cooling system and eventually the engine.
#3113 of 3449
T-stat '02 Cevy Blazer by redgms
Jan 20, 2008 (9:28 am)
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I was hoping someone could help me by letting me know where the t-stat is in my 2002 chevy blazer. I have been all through the engine and the manual and can't find squat. Any help would be appreciated.
 
Thanks...
#3114 of 3449
Re: Engine Noise [benjimin] by jdoran
Jan 20, 2008 (11:40 am)
Reply

Replying to: benjimin (Jan 05, 2008 11:55 am)

trying to find out answer to your question on the timing chain,did it fix your problem with the engine or is it still there,and if it did what part or parts did the dealer replace and how much did they charge,having same sounding problems with my blazer and just would like to know whats going on,any info would be greatly appreciated,thanks Jim
#3115 of 3449
Re: Engine Noise [benjimin] by jdoran
Jan 20, 2008 (11:40 am)
Reply

Replying to: benjimin (Jan 05, 2008 11:55 am)

trying to find out answer to your question on the timing chain,did it fix your problem with the engine or is it still there,and if it did what part or parts did the dealer replace and how much did they charge,having same sounding problems with my blazer and just would like to know whats going on,any info would be greatly appreciated,thanks Jim

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