When I purchased my suburban the a/c and heat would sometimes work in the front and rear. They "fixed" the problem and now a year later the entire rear component works sometimes and not others.
View 1 Repliesthe rear heat doesnt work, the front heat works and the rear AC works fine.
View 6 RepliesI have a '93 Suburban, Its actually in great shape, except that the fan made some loud whining noises for about 45 minutes and doesnt work at all now. I have heat, but only when Im driving on the highway and only when the heat is actually turned to the "off" postion on the switch and I dont even have heat when slowly driving around town. The rear fan works, but blows cold too. Im not sure that even gets hot when Im moving, as I feel a cold breeze on my neck when I turn on the fan when Im driving. I dont think the ac works at all...just bought this truck, so havent tried it, and its cold out anyway, so I'll have to wait I suppose.
View 6 Replies2004 Suburban with dual manual a/c controls. My problem was first going from a/c all of the sudden it would switch to full heat. I could pull over stop the engine for a minute and restart and it would correct itself. Started doing this a lot so I replaced the mod door on drivers side. It worked for a couple weeks and started same thing again. I put it in the shop and they replaced the other two mod doors and did a lot of wire testing and even talked to Chevy. They were able to correct the air and heat problem but now I have a problem with the air going to the defrost and floor, maybe a little out of the dash and you no matter what you select it will not move to just floor or dash etc.
View 3 RepliesI replaced the oil pressure switch on an '07 Suburban 5.3L because the oil pressure was showing low once the engine warmed up. That did nothing, then I found out about that little filter/screen under the sensor. I intended to remove and clean the filter then reinstall it. While I was pulling it out, I dropped it back behind the engine and couldn't find it. I checked online and found a few people in other forums that said to just remove the screen as a "fix", so I left it out and put the sensor back in, just to get the vehicle drivable. It started right up and ran fine for me, parked it, and a after sitting for a few hours it started popping while driving with the SES light flashing on the drive home.
Code P0300 was set, no cylinder specific misfire codes were present. I checked the misfire data and cylinder #6 showed tens of thousands of misfires, #5 showed several hundred, but I think it was just picking them up from #6 since #5 is right after #6 in the firing order. I disabled each injector with a scan tool, all changed the idle except #6, it did absolutely nothing. #6 fuel injector had good pulse to it, I connected a fuel pressure gauge and put power/ground to injectors #6 and #4, both dropped the same fuel pressure. I did the "cylinder deactivation" test on the scan tool for the four cylinders that have it, they all did the exact same thing - the engine bogged way down for a couple seconds and then died. Is that normal? I can't say I've ever seen a V8 engine die before when running on 6 or 7 cylinders.
I checked compression on cylinder #6, it showed very low, almost zero, but I tried it a few times and it would show just a little compression at times... valves staying shut? I'm thinking when I opened the pressure relief valve on the gauge and the piston was near the bottom of the cylinder may be when it showed some compression. I also switched the coil/wire/plug from #6 to other cylinders and the miss did not follow.
So my saga continues with my rear brakes on my 99 Suburban - had a glazing problem that was eventually discovered, glaze knocked off old pads and then glaze came back again. So we replaced the rear drums and pads. A month and a half later I get an irritating squeaking noise.
Noise - when the tires are rotating they make a light squeaking noise, a rotating/pulsing squeak; when the brakes are applied they make a lower pitch squeak and if I apply just the right pressure on the brakes I can get the noise to go away (while also giving it gas to keep moving).
Last night I inspected the rear brakes and found an excessive amount of dust/grime on the pads. The drums we fairly clean. The pads had a heavy layer of rust/grime on them. When I ran my finger over them it left no mark on the pad because it was so heavy, but my finger had this sooty grime on it. The rust covered about a 1/3 to 1/2 of the pads (each pad had a different amount of coverage).
Everything is brand new and I'm not sure what is causing all the dust coverage.
I have a 1994 suburban1500 heater is not working in front or rear and in the front I have no control on the vents it only blows on the floor flashes if I try and change from floor to vents or defrost also blows air on floor while driving with the fan off so seems that the vent is stuck open the rear I have control on vent or floor just will not blow heat just outside temp air I had the same problem with a buick I had and never figured out the problem this is driving me crazy.
View 1 RepliesI own a 99 Suburban 1500 5.7. The front blower motor stopped working on all speeds so I replaced the resistor, it still did not work. I then replaced the speed selector switch and it started working fine. Three days later I smelled a slight electrical burning smell and the fan stopped working again. I plan on replacing the switch again to see if that is what went bad. Whats causing this to happen? Maybe the motor is going bad and causing the switch to short?
View 6 RepliesHave a '99 K1500 Suburban. My passenger rear door lock will not move. It is very difficult to pull up the lock in order to open the door. The keyless entry and master door lock does not work on this door. None of the other locks seem to have trouble. Does this sound like something is bent or need cleaning?? Or could it be the actuator?? Doesn't seem to be electrical because the lock will not move??
View 9 RepliesI have a 2002 Suburban 1500LT with rear wiper, and it has intermittent capabilities. Recently the rear wiper arm appears to be trying to park over and over when the switch is turned to off. Once in awhile it will make a full pass but then it goes back to the endless park syndrome.
View 7 RepliesMy vehicle does not lock the rear window glass on the left gate. All other locks work fine. The rear lift gate glass just slams and nothing.
View 2 RepliesMy '07 Suburban with 55k miles has a "slip and grab" feeling coming from the rear end (when leaving a dead stop, rounding corners at low speed, and coming to a stop). Almost feels like a bad universal joint. The guy at the local axle shop tells me that this is common among GM trucks. He said that he has never seen one fail, but when I get sick of the feeling to have the rear end replaced. He said that it has something to due with the traction control "governors". I will be taking the vehicle to a GM dealership (since this is drivetrain related and under the 100k warranty. As I would like to be as specific as possible when talking to the dealership.
View 14 RepliesNoticed this during a recent trip halfway cross country. It did POUR for part of the trip, but I didn't notice the wetness until a few days after we were at our destination. Further, none of our luggage etc was wet, so I don't suspect a leak in the rubber gaskets along the window. We did have the A/C running constantly while in 90° heat. I checked underneath the car; saw no obvious signs of rust on the underside. I did see a hose and some type of contraption on the passenger side rear, above the muffler - it was dripping water. Is this part of the A/C system, and could it be the cause of dampness in the carpet?
View 1 RepliesI replaced the oil pressure switch on an '07 Suburban 5.3L because the oil pressure was showing low once the engine warmed up. That did nothing, then I found out about that little filter/screen under the sensor. I intended to remove and clean the filter then reinstall it. While I was pulling it out, I dropped it back behind the engine and couldn't find it. I checked online and found a few people in other forums that said to just remove the screen as a "fix", so I left it out and put the sensor back in, just to get the vehicle drivable. It started right up and ran fine for me, parked it, and a after sitting for a few hours it started popping while driving with the SES light flashing on the drive home.
Code P0300 was set, no cylinder specific misfire codes were present. I checked the misfire data and cylinder #6 showed tens of thousands of misfires, #5 showed several hundred, but I think it was just picking them up from #6 since #5 is right after #6 in the firing order. I disabled each injector with a scan tool, all changed the idle except #6, it did absolutely nothing. #6 fuel injector had good pulse to it, I connected a fuel pressure gauge and put power/ground to injectors #6 and #4, both dropped the same fuel pressure. I did the "cylinder deactivation" test on the scan tool for the four cylinders that have it, they all did the exact same thing - the engine bogged way down for a couple seconds and then died. Is that normal? I can't say I've ever seen a V8 engine die before when running on 6 or 7 cylinders. I checked compression on cylinder #6, it showed very low, almost zero, but I tried it a few times and it would show just a little compression at times... valves staying shut? I'm thinking when I opened the pressure relief valve on the gauge and the piston was near the bottom of the cylinder may be when it showed some compression. I also switched the coil/wire/plug from #6 to other cylinders and the miss did not follow.
Could having that screen out cause this problem? Having the engine die when deactivating the cylinders makes me wonder if maybe it's commanding all four at the same time, although the test shows each cylinder being controlled separately. Using a MODIS, not a TechII. I just got done putting in a new filter/screen to see if it would make any difference, and of course it didn't.
I have a K2500 suburban that has a rather aggressive/violent "vertical" shake when braking above 30mph... I bought it about 6 months ago and was told it just had a full brake job all around(receipts provided). The shake has been off and on, mostly reserved to highway speeds, however recently it has been constant at any speed above 30mph... Thinking it may be the rotors. I pulled the wheels off and even though everything looked brand new (as described) I replaced the rotors and put on new pads... did not fix the shake... and I had the old rotors mic'd and they came back good as new with zero need to turn/resurface.
I was told it may be the ABS, So I pulled the fuse... and it didn't fix the issue also I have no light on the dash
I was told it may be a flat spot on the rear drums, so I replaced the rear drums and it didn't fix the problem... the shoes looked brand new and had just as much pad left as the set i was replacing them with, so I left them alone.
I had happened to have new tires put on it, and they advised my pitman arm and idler arm were shot and that they couldn't do an alignment, so I replaced the pitman and idler and brought it back to be aligned which they did... this did not resolve any issues...
I spoke with the previous owner and he said he had the same issues and couldnt figure it.. he said his mechanic replaced the wheel bearings, rotors, pads, calipers, brake lines, ball joints(all receipts provided, and all these parts look brand new)...
The shake is very aggressive it makes the dash jump up and down and vibrates the hood to the point where it looks like it will rattle off.. the pedal doesn't pulse and the steering wheel aside from vibrating up and down doesn't pull or shake one way or the other... truck doesn't pull when braking or during this shake... and the second you let off the brake the shaking stops... and only ever shakes when you hit the brakes...it rides as smooth as can be when not braking...
I have a '98 Suburban 4WD, last week I started hearing a clicking noise when I go in reverse. Sounds like it is coming from the rear axle area. I don't hear the sound when going forward.
View 3 RepliesI have a noise that has been driving me crazy for a week now. After some investigation I have discounted a few things. To sum up the noise, it seems to be coming from under the vehicle, maybe the passenger rear. It sounds kinda like a jack hammer and it is loud. People on the street can hear it well! There is no consistency in it. I do not here it standing still and it only appears when I am driving. The speed does not matter.
While driving, it will come and go, it will last from 5 seconds to up to 30 seconds. While driving along, it starts, then stops abruptly without dying down. The speed of the "knocking" will follow the speed of the vehicle. If Im going slow (20 mph) it will knock at a slower pace, thus going 65, it is 2 a second. There is nothing loose, I have ruled that out.
Although it does sound like something loose and hitting. I can feel it slightly on the floorboard under the pedals and passenger side. I have to believe it is the rear u-joint? but that was replaced 2 years ago, and I have never heard of a u-joint making this noise.
I have a 2002 suburban . I have a humming noise coming from the rear . It starts at 45mph and then goes away at 47mph. I hear it again between 60-65 mph then goes away . This is a faint sound . When pulling a trailer the sound is much more noticeable and more constant from 55-64 mph . When I let off the gas the sound is still there and fades as the truck slows. Am I dealing with a bad tire ( I plan to rotate them to see if that is the cause ) or a wheel or axle bearing ? To note I replaced the front wheel hub/bearings just about a year ago .
View 2 RepliesOne side of my rear defogger wire has detached from the window. It detached right at the metal clip and window. I will not solder (due to possibly breaking the window). Have tried all kind of epoxies & bonding agents - will not work.
View 2 RepliesI have a 1977 GMC Suburban with a power rear window in the tailgate.It has become very hard for the motor to open or close the window and it makes a screeching sound when being operated. Does the interior window frame need lubricated or is it rubbing on something?. I know there is a access plate on the inside of the tailgate but the window denies access to the inside of the tailgate. Is there a way to open the window when the tailgate is open so I can access the interior of the tailgate?.
View 4 RepliesSo my saga continues with my rear brakes on my 99 Suburban - had a glazing problem that was eventually discovered, glaze knocked off old pads and then glaze came back again. So we replaced the rear drums and pads. A month and a half later I get an irritating squeaking noise.
Noise - when the tires are rotating they make a light squeaking noise, a rotating/pulsing squeak; when the brakes are applied they make a lower pitch squeak and if I apply just the right pressure on the brakes I can get the noise to go away (while also giving it gas to keep moving).
Last night I inspected the rear brakes and found an excessive amount of dust/grime on the pads. The drums we fairly clean. The pads had a heavy layer of rust/grime on them. When I ran my finger over them it left no mark on the pad because it was so heavy, but my finger had this sooty grime on it. The rust covered about a 1/3 to 1/2 of the pads (each pad had a different amount of coverage).
Everything is brand new and I'm not sure what is causing all the dust coverage.