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2003 Blazer Multiple Problems Over Past Year

6 messages,  Last post on Apr 08, 2009 at 2:04 PM

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#3 of 6 Re: 2003 Blazer Multiple Issues Over Past Year [emtchick83] by coachhill Jan 17, 2008 (1:38 pm)
Replying to: emtchick83 (Dec 16, 2007 3:18 am) I have a '98 and at about the same mileage my gas mileage got very bad. I replaced the spark plugs and distributor cap and things were much improved. There's not much else you can do for a 'tune up'. Mileage went from 14mpg to more like 18 in town and as much as 23 on the highway taking it real easy. These things eat ball joints, especially the lower ones. But it's such a bear to get to them most repair places suggest changing both upper and lower at the same time. Good luck!
#4 of 6 Re: 2003 Blazer Multiple Issues Over Past Year [emtchick83] by quantumtouchfl Feb 01, 2008 (12:28 pm)
Replying to: emtchick83 (Dec 16, 2007 3:18 am) Hi, I own a 96 Blazer LS 4 Dr... I live in Florida... I bought my Blazer in January of 2003 with 80K miles. It was a lease vehicle for a local A/C company, only the driver seat was sat in. I keep a maintenance and mileage log. I get 19-22 MPG combined C/H. At the time I purchased it, I was working at a dealership (I have worked as a mechanic for over 30 years). The first week I had it, I converted the vehicle to AmsOil Synthetic lubricants, and flushed the transmission, and again six months later. The vehicle now has over 190K miles. It has proven itself as a very reliable vehicle with only one flaw that I have discovered to date. It concerns the main plug for the A/C system close to the blower motor. Same exact flaw on my 81 and 82 Grand Prix. There is a large red wire and two or three smaller wires at this connector. The larger wire is the main blower wire which overheats when the blower is on the high setting. It overheats because the metal connectors corrode within a few years because it is not a weather proof connector… a design flaw in my book. Eventually the connector melts… and you have a melted connector mess. The simple solution is to cut the big wire on both sides of the connector and reconnect using a yellow barrow connector filled with di-electric grease. I have had to do that to six GM vehicles that I have owned. Symptoms are the blower will start and stop on high and then eventually not work. Do yourself a favor… and make the repair… unless the connector is still in good condition… meaning it is not melted… then just pack it with di-electric grease. I can send a photo of the repair.   Take care, TJ
#5 of 6 2003 zr2 Blazer Spare Tire Nuisance & 4x4 Problem by lippart Mar 11, 2008 (8:51 am)
How do I get the spare to stop squeaking when I hit bumps in the road.And has anyone had the front 4x4 engagement survo go out? It's located under the battery.I was navigating a deep mud hole when the 4wheel drive stopped working. I found a 2"-3" tare in the survo. I was told by the dealer that it is rare for the survo to tare like that. But I should know by now that if something is going to happen out in the middle of nowhere,it will happen to me. Replies to this message: c5nut (Apr 08, 2009 2:04 pm)
#6 of 6 Re: 2003 zr2 Blazer Spare Tire Nuisance & 4x4 Problem [lippart] by c5nut Apr 08, 2009 (2:04 pm)
Replying to: lippart (Mar 11, 2008 8:51 am) I had a lot of squeaking coming from the rear of my 2000 too. I found that it is actually the window latch and striker that squeaks. Try spreading some lithium grease on the latch or spray some wd40 in there (grease will last longer). If it turns out to be your spare tire carrier after all, there are 2 bumpers on the carrier that can be adjusted above and below release handle. Crank them out a couple turns (there are nuts on both sides of stud) and see if that helps. Might be some trial and error with this because if you adjust them too far your carrier may become difficult to close. As far as the servo goes, haven't had any trouble with mine. But I noticed that the battery tray has a hole in the middle of it and any water trapped there drains right on top of the servo. I took a bit of plastic tubing and super glued it to the bottom of the battery tray so the water would drain away from the servo. Hope that helps!

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