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Chevy Blazer GMC Jimmy Electrical Problems

tigerpermtigerperm Posts: 1
edited October 2018 in Chevrolet
I've got a blazer with over 100k miles on it. In the past couple of days, I drive down the road and it sounds like the right turn signal is constantly on. Is this the precursor to a serious electrical problem? Any advice appreciated. Thanks -


  • tidestertidester Posts: 10,059
    Just to rule it out - but is there any possibility that something is tapping against the steering column such as a keychain or somesuch?

    tidester, host
  • repairdogrepairdog Posts: 948
    You are lucky this time cause the flasher is a recall item (had mine done free) that is part of the mulifunction switch - all they do is pop the harzard switch out the top of the column and put a new one in - due to failed brake lights because the flashers use same circuit but the top mount or third brake light still works. This should cure the problem. Behind the glove box are 2 relays or canisters 1 for flashers and 1 for blinkers - thats where you hear the noise I'd guess. Earlier models often replace the whole multif switch to solve the noise but this is the part that should do it - for free so let all know how it works out.
  • cbarnettcbarnett Posts: 1
    My blazer's brake lights have failed but the top mount still works. Called my local dealership and they said was no recall on this. Can you give me some more specifics on the recall that you are speaking of.
  • repairdogrepairdog Posts: 948
    Its the flasher switch on top of the steering column and mine was replaced on a recall - run the VIN # and it will come up on their computer - if not ask for the service manager. Lazy guys sounds like.
  • hybridprhybridpr Posts: 3
    a few months ago the power door locks just stopped working. also the keyless entry no longer works when i disarm the car alarm. when i press the lock or unlock button on the door, i hear a clicking coming from inside the glovebox from the relays. could that be where my problem is? whats the fix for this?

  • repairdogrepairdog Posts: 948
    see answer in other section - don't double post!
  • bigjoe85bigjoe85 Posts: 5
    I have an 01 blazer 4.3 vortec and Im having trouble I think with the feul system. When I would pull up to a stop light sat there longer than 5 min. it will cut off on me and it and now its shutting off while im driving down the road. I have no problem starting it backup though. Fuel pump or possibly injectors?
  • repairdogrepairdog Posts: 948
    Don't double post - see answer in starting stalling post.
  • Hello Everyone, The mchanism that releases the rear glass hatch will not release. I can hear it engaging but not releasing. How do I get the panel off without tearing it up? What are the repairs that will have to be made once I get to it? Thanks for any help!! Raidercoop!!
  • repairdogrepairdog Posts: 948
    Open the whole hatch (assume you don't have the tailgate/window) and remove the plastic panel screws and then the handle screws - mech is inside there.
  • there is no way to open the whole hatch manually. All the entries are electric. there is not a keyed button on the exterior of the hatch and the handle on the inside will not open the tailgate. As such I cant get to the screws that hold on the plastic panel. I have already removed the screws that hold the handle on and removed the handle. I just don't know how to remove the panel without tearing it up. Any ideas will be appreciated. Thanks Raidercoop!!
  • Had the exact same problem on 98 Blazer. Issue was the turn signal switch mechanism. Unfortunately part was $250 & $250 labor to install since steering column has to be disassembled to install it. Only 80k on vehicle at the time. Low grade parts appears to be the real issue ....
  • jdreed8jdreed8 Posts: 1
    I have a 97 Blazer that I can't open the window/tailgate on. I hear the solenoid but assume the link is busted. Anyone know how to get the window open so I can get to the mechanism? Any help greatly appreciated
  • softtailsofttail Posts: 11
    I have the same issue w/ my 02 Blazer. I've followed this discussion a little in hopes of hearing a solution. I don't see any further posts. Did you sort it out? Sean in Toronto
  • softtailsofttail Posts: 11
    I cannot get the rear gate or hatch to open on my 02 Blazer. I can hear the actuator operating but it will not complete the task. I realize a pin is broken on this part however how does one manually open the gate or hatch to begin the repair?
  • softtailsofttail Posts: 11
    Any luck w/ your tailgate / actuator issue?
  • Well after getting completely frustrated with the whole issue I finally found out what's wrong with the glass release switch. There is a plastic connector that is attached to a lever that in turn presses against a switch. That plastic piece is broken at the connection point. Leave it to GM to use a piece of plastic in a mechanism that will move thousands of times. The bad thing about the whole process is that while I was trying to figure everything out I broke the panel that covers the tailgate and now have to see if I will be lucky enough to find another one at a junkyard. I would assume that the plastic piece can be purchased from a local chevy dealer. With hindsight being 20/20, I found that there is an access hole in the tailgate to get to the switch that opens the glass. You will not be able to get the panel off until you open the entire hatch but you can pry the panel back enough to get access to the switch. I will take pics and try to post them on this board. If I can't post them here, I have a account that the pics can be viewed there. Anyway you are in for a very frustrating time. Since I was so irritated I decided it would be best to take break and haven't messed with it since, but I believe I could fabricate a different connector out of metal so that I would not have to deal with this trife issue anymore. Stay tuned for the pics. RAIDERCOOP!!
  • steverstever Posts: 52,683
    You already have your CarSpace page set up. If you click on the album link there it's easy to copy photos from your computer to ours and then post them here, or just send people to your album. See the Help link for details.
  • dowkujodowkujo Posts: 2

    I have 97 Blazer with the same problem that I just fixed today for basically free. The Chevy dealer wanted $65 for a new release actuator and $125. for a new interior panel because you most likely will have to break your existing panel to open the glass. How stupid.

    Anyways, what I did was attempt to pull the interior panel away from the tail gate at the top near the tail gate release handle. Mine did break but I was then able to manually release the glass and then open the tail gate.

    With the tail gate down you can then remove the panel by unscrewing the two measly phillips screws on the left and right side of the panel and then pop the panel off. Keep the plastic pieces of the panel because I was able to glue them back and it looks like it will hold pretty well.

    Now that the panel is off, use a 7mm (I HATE metric) socket and remove the bolts surrounding the metal removalbe panel on the tail gate. Before lifting the panel up you'll notice two white plastic tab/rod clamps on the left and right side of this metal panel. You'll need to pop the rods out of these tabs in order to lift the panel up.

    Once done with that lift the panel up and take a peek underneath. There you'll see a black box held on by two phillips screws. This is the lock actuator. Sticking out of the side of this box is a rubber booted rod an inch or so long. When you push the release button on the tail gate (go ahead and do it) you'll see how the magic is supposed to happen. The booted rod is attached to a blue PLASTIC piece and the blue plastic piece is attached to the release arm. Well, my blue plastic piece was snapped off just short of where it is attached to the release arm. You'll prolly find the broken piece floating around in there somewhere.

    Here's how I fixed it. I found a roll of water-pipe plumbing strapping, you know, it's the stuff that looks like it's made of copper and has many holes in it for nailing to lumber. I cut a piece of it about 2 inches long and laid it on the blue plastic piece that was still attached to the rubber booted rod. Using a marker i marked where a hole of the strap fell and drilled a small hole through the plastic and attached the strap to the plastic with small stove bolts and flat washers.

    Next, using the same type small stove bolts, flat washers and nuts I attached the other end of the short strap to the release arm. Since you can't tighten the nuts that much I used lock-tight to keep the nuts from ever backing off.

    Also, I used a dremel-tool to smooth out the ridge on the blue plastic picece on both sides to give more flat surface area for the pipe strapping to bolt on and I also used a dremmel cut-off wheel to cut excess bolt away after the nuts are on and tight. Else it might interfere with something else.

    Before bolting the panel back on I tested it out and it looked like it was doing it's magic so I put it all back together and hot diggity I did it!!

    Instead of throwing away the old interior plastic panel I glued the broken off piece back on and secured with duct tape while it dried for 24 hours and it seems to be holding.

    So, that's how I did it and saved over $200.00. Hope this helps others defeat GM and their ridiculous factory way of fixing a broken piece of plastic!!
  • tidestertidester Posts: 10,059

    tidester, host
  • 98 s-10 100k miles did cap ,rotor, plugs ,wires,. after a good rain runs rough under load no power. mechanic thinks fuel pump ,say's computer read out low pressure. i think electrical. only in damp conditions does this happen after dries out ok. help
  • Fuel pressure test should show 60psi at key on engine off and it should hold it (pump only comes for for 2 seconds) then about 54psi running. If only when damp could be a wet connector at the crank sensor under the front of the engine. Have you put a new fuel filter on (every 25k miles) under frame by drivers seat. The pumps do often fail around then and use Delco replacement about $300 part online at rockauto or gmpartsdirect but have to drop tank. Also how is the battery and alternator - is the gage reading about 14V running - don't like low voltage so if its failing and reading below 12 have them tested free at most stores in car.
  • I hope that someone out there might be able to help me troubleshoot a problem that I am having with my 1998 GMC Jimmy. The interior/dome lights will not turn on when the doors are opened on the vehicle, none of the doors being opened will trigger the lights to come on and I am at a loss as to what it might be. Has anyone out there had a similar problem?
  • On the dash switch there is an "override" button for the dome lights - see if that is depressed. If not switch could be bad or a fuse blown so pull the cover on the side by the open drivers door. Your manual tells you what all of them are.
  • I just used the info I learned here to help me repair my '96 Jimmy. I also wanted to add some additional things I learned. This is dealing with the glass hatch/tailgate style Jimmy. By removing the plastic part of the tailgate handle (two screws on underside), I was able to pull back the plastic panel without cracking it at all. Once I got it all opened as was described by others, I found that the two nuts that hold the latch in place had come loose and fallen off. Prior to the glass not opening, it had become very difficult to close, so this is a possible solution for any who are having this problem as well.
  • So........ you recommend removing the plastic part on the handle on the inside of the tailgate itself? I'm not sure if your truck is the same as mine so I'd like to be sure. The inside panel on my 2002 Blazer is very secure in it's place. The plastic part would be covering the handle correct? And to be doubley sure it is on the inside? After this you say the panel can be removed without breakage? Pls confirm.

  • There is a hole in the plastic panel covered by carpet. Feel for the soft spot at the top edge of the carpet in the center of the the tailgate. Insert a slightly bent, stiff steel rod in, then up inside the inner metal panel. Go in about 3-4 inches and fish for the window latch lever. The lever is above the hole and close to the inner panel, so work the bent end of the rod back towards you as you push it up and fish for the lever. It releases when tripped to the left.
  • :sick: My 1999 Chevy Blazer started to over heat . checked water it was fine .But felt best to shut it down . waited 4 hours then restart and drove 1/4 mile it over heated again , this time white smoke coming from under hood . called brother he arrives within 15 mins starts car and heavy black smoke comes from exhaust car is makeing terrible noise but he says get it home . it ran for maybe 5 mins then sounded like someone was knocking under hood .Make a long story short car stalls .. wont restart now its been 24 hours and still wont even make an attempt to click over :mad: Light on panel says security systerms
  • First thing is did the coolant drop - had to with the white smoke or steam - you either blew the lower intake manifold gasket like all Blazers do by 100k and it dumped water in the valley or you got it really hot and blew a head gasket. So look around under the hood, in the reservior and radiator and see the state of it all. Then if coolant low or empty refill with water and get a free rental pressure radiator tester and pump it up to 16 lbs and see where it leaks - if you can't see where pull the oil dip stick and see if water in there. Also pull the spark plugs and see if they are all wet.
    As for the security light - when you turn the key to run (not start) it should go out within 5 sec - if not then you may have a passlock problem. Assumes the battery is charged so enough voltage and amperage to turn the starter - but don't do that till the water problem is found or you will certainly trash the motor and bearing.
  • Does anyone have pictures of this? I found the small hole in the panel under the carpet, and I see the mechanism that is moving to the lift when I press the button, I just for some reaon cannot release the lever by fishing around...I want to remove the plastic and have very much fought the urge to bash it in with a rubber mallet :) Pictures would be great...PLEASE HELP!! Need to fix so my husband can throw his ruck sacks in the back!!! THANK YOU :)
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