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SUVs Chevrolet Blazer Chevy Blazer GMC Jimmy Electrical Problems
472 messages, Last post on Nov 19, 2009 at 4:18 PM
You are in the Chevrolet Blazer Forum. Your Hosts are steve_ & tidester
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Replying to: buster1155 (Oct 26, 2009 5:43 pm) find the diagrams.I wonder how you went through so many related parts and you never mentioned having a blown fuse.In the diagram you will find the routing of the wiper related wiring. Sometimes the wiring will go through other unrelated parts other than the one you have problems with. I suggest you get the diagram and start from the fuse panel.Sorry I can't pinpoint the exact problem but I hope you may use something I may have said to help you fix your problem. Good luck!
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Replying to: cardoc50 (Oct 28, 2009 7:34 am) 
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| Last night my nephew left the back gate on my blazer open all night. It started fine, but when I got to work this morning I tried to lock the doors and nothing..... I checked all the doors and made sure that they were all shut including the gate. Still nothing. Since it was the gate left open I tried to lock all the doors thru that lock. Which worked. So I thought. When I went to my blazer at lunch, all the doors were unlocked again. I checked the back gate, it too was unlocked. I got in the blazer and started down the road and I heard a click. Then the "gate ajar" light came on. Once I got stopped, I tried again to lock all the doors with no luck and the gate ajar light keeps coming on. What do I do????? | |
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I have a 98 Jimmy that Ive had for a year. 150k miles, runs like a champ...well since i fixed everything that was wrong. The last week or so, my trip odometer sporatically resets itself when I turn the car off, then restart it again. It always resets itself overnight (again this just started about a week ago), and sometimes resets throughout the day. I truly rely on my trip odometer for gas mileage as the gas guage is always jumping. I have very car knowledgeable friends and they have no clue. My best guess at this point is a short somewhere??? Any helpful tips, hints, or advice of where to start to try to get this fixed would be greatly appreciated!!! Thanks!
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I must be an idiot because I cannot find the underhood fuse/relay box on my 1997 GMC Jimmy SLE. There are posts on this forum that refer to it for that model year, and my Chiltons has a picture showing a big, black plastic box sitting atop the driver's side fender. But I don't see that on my Jimmy! Where should I be looking?
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Replying to: slarra (Nov 15, 2009 4:25 pm) of mine either. There is a big black box under the hood on the right side.It is your PCM (powertrain control module) or computer is what some call it. On the firewall behind the engine there are three relays.All three of these are for the airconditioner unit.The box on top of the left (drivers side) fender is the anti lock braking system. There are three relays behind the glove box. One is the fuel pump relay, one is for the headlamps for high and low beam and daytime running lamps. The other I can't remember just now. When you open the drivers door, on the side of the dash is where the fuse box is located. There are two relays in there also.So, no you are not an idiot. |
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| I was driving down the road today at about 70 with the cruise control on and the battery light came on, a very sort while after, the airbag light came on. I looked down and the volt meter was droping. At about 9 to 10 volts the gauges died. (All except oil press and the transmission indicator as well as milage.) A mile or two down the road the truck was slowing (loss of power) so I pulled over to the side of the road to squeeze as many miles out of it as I could. I hit the edge of the road at about 50 mph and everything came back to life. Cut the hunting trip short turned around and on the way home it did the same thing another 9 times for the next 30 miles to the house. There may have been some viabration when I pulled over hitting the rumble strips but I would hope that we don't jump on it and assume a bad ground right off the bat. Checked the battery under load reading 12.4v stuck the meter on it after starting the engine and was reading 14.06v then it would jump around abit to 9.05v, 10.0v, 12.4v then back up to 14.06v and hold steady. The battery is old but the alternator is 8 weeks old. I have been reading the posts and found some similar but not the same. I also have been dealing with the inaccurate fuel gauge for about 3 years. I fill the truck up indicates full, never gets below half a tank until it jumps to E. Fluctuates when shifting from P to D or R. Love this truck but don't trust it to take trips with any more. I have had it since new in 99. By the way it is an SLE 4x4 4.3L v6. Appreciate any input anyone might have. Thanks. | |
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Replying to: cwangs1 (Nov 16, 2009 11:18 am) bad experiance very simular to yours. After checking and letting the parts store check it, it was bad. When it started going bad, it would lose power and I had to pull off at several rest areas because the lamps were getting dim and the doors locked by themselves and a couple other wierd things happend also.I would sit in the rain and finally get someone to jump me.When it started the guage would go up to normal as it rapidly charged the battery. It happened a couple more times that night. Altinator was the first thing I thought of.As I said it checked bad. I bought a reman altinator saving a great deal of money. It was good until the trip home from the hospital,same thing. I will also mention our 99 grandprix gt did the same thing only we could'nt get the windows to work at all.We were stuck inside and I had put a reman on it too.Put a new(not remanufactured) one on both vehicles and that's been a few years back.My sons 99 camaro he put four remans on it before he finnaly listened and went to new. I don't know if you went for reman or new but,new ones go bad sometimes too. It shorted out the battery in my Jimmy also.Had to get a new one. Check or have your altinater checked first
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Replying to: cardoc50 (Nov 16, 2009 2:05 pm) |
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Replying to: cwangs1 (Nov 16, 2009 11:18 am) All that being said, your "new" alternator may be having issues. Cruising on the road in daylight hours with the fan on low, you are not putting much stress on the alternator at all. By the way, that gas gauge problem you are seeing is a software issue with '99-'02 GM trucks. Instead of buffering the gas slosh in the tank with a baffle, the designers used software to "average" the signal coming from the sending unit to the BCM. Problem is, some code junkie only conditioned the signal when the vehicle is in drive, not reverse, or park. Want to see something cool? If you back out and the gauge drops and turns on the "low fuel" lamp, put the vehicle in drive and get moving up to about 20mph or so. Shift the tranny into neutral and put on the brakes. The fuel gauge will swing back up to the true reading. Before you stop, shift back to drive. This kicks the software back into "averaging" mode and the gauge will behave normally. You don't want to know how long it took me to figure out what was causing this! 
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