20 Most Recent 1999 GMC Suburban Questions & Answers

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Why does ignition lock cylinder just turn back and forth?

all that must be repaired is this car fitted out with IMMO and passive electronic keys? got insurance, all them tell them car was vandilized may INS CO> have special rules on that. unlike collision. so call them if if yes, tow car to shop get it fixed on them. we can not see what this car has there, lots of options!! the GM car has a RPO list based off VIN full # (all options listed) and will list IMMO PASSKEY, if there. and is the first thing to do on all cars. made 2decades, or go mad and broke fast. first things first and fuses good too. and scan the pCM for IMMO errors, etc. for sure the key switch was wrecked by them or more. more happens,
5/27/2023 2:13:40 PM • 1999 GMC... • Answered on May 27, 2023
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1999 GMC Suburban 1500. What can cause a battery drain in 1990 GMC Suburban?

Question edited for clarity. Question moved to model category. The first obvious thing to do it check for lights left on, dome light, hood and trunk lights. This is how you test for what is causing the parasitic drain. https://www.fixya.com/cars/r29903527-parasitic_draw_car_batteries ..
4/23/2023 7:57:30 PM • 1999 GMC... • Answered on Apr 23, 2023
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Right rear turn signal blinker blinks very fast

Your right rear turn signal bulb is blown.Replace the bulb and the fast blinking will stop.
11/16/2022 6:54:20 PM • 1999 GMC... • Answered on Nov 16, 2022
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I have two 99 gmc suburbans 4x4 and 2wd could i put the 2wd body on the 4x4 frame?

Yes, there is no real difference between the body or frame of a 2whl and 4whl as long as they are the same length, IE standard cab, crew cap, long bed, short bed... If it is a HD 4x4 you might have an extra hole in the floor of the cab for the shifter lever, but the 2whl should have a block off plate for this. If not, you might need to fab up a patch.
1/7/2020 12:41:32 AM • 1999 GMC... • Answered on Jan 07, 2020
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1999 suburban usung a lot of antifreeze

Some of the V-8 engines like to leak out the back of the intake manifold. It then drips onto the exhaust and evaporates so you never see it, you just smell it. Look for it back there. You may want to have the system pressure checked too. If it is leaking out the intake, it is not an easy or cheap fix. I just did my 96 Yukon and it was not fun.
Good Luck and hope this helps.
10/2/2019 4:36:46 AM • 1999 GMC... • Answered on Oct 02, 2019
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I HAVE A 99 GMC SUBURBAN 4WD AND WE HAVE PUT 3

How long are the trannys lasting between changes?
6/28/2019 8:04:42 AM • 1999 GMC... • Answered on Jun 28, 2019
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Tail Lights Not Working on 1999 GMC Suburban

My tail lights and instrument panel lights are out and fuse keeps blowing need to fix it any ideas
4/27/2019 7:54:12 PM • 1999 GMC... • Answered on Apr 27, 2019
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I am stil waiting for

don't know what your problem is. we cannot see your history of questions. this web site has volunteers that offer support for people with problem. I specializes in electrical issues. If your question isn't electrical then you can submit your question again. or replay to my thread. or if you need instant answers the you can go to the one on support room where they get paid from you for the answers they give. I help poeple for free and expect people to give a fair score in return. \hope \i have answered your questions and will wait for you to send me your question. have a great day.
12/15/2018 4:20:57 PM • 1999 GMC... • Answered on Dec 15, 2018
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1998 Chevy Suburban - service 4wd light comes on after running 4x4 for 2 mins

Well it could be the selector switch, but I doubt it.Generally, the service light means something is not working that the computer controls. Solenoids and valves are a couple of possibilities.The transfer case is shifted by solenoids commanded by the body computer based on the switch position on the dash.You should be able to have a shop scan the body computer for trouble codes and proceed from there. A basic code reader may not access the body computer.
11/12/2018 5:40:57 PM • 1999 GMC... • Answered on Nov 12, 2018
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Low beam lights won't work.

Don't know that much about 99 Surburbans but you may won't to see if you could just unplug it from the cluster or maybe see if thiers a fuse for your lights that you can take out
11/12/2018 4:55:22 PM • 1999 GMC... • Answered on Nov 12, 2018
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Transmission wont shift into 3rd gear.

I had this exact problem on my 2005 5.3L Suburban... It would shift into 1 and 2 and reverse, but not 3 and 4.

I took it into a transmission shop, and he said the 3-4 shift solenoid was burned up. Wanted 1500 to fix it. Far from home, so I have to pay it.
10/21/2018 4:50:02 PM • 1999 GMC... • Answered on Oct 21, 2018
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Drivers side door, not opening

VERY common issue.. the handle being replaced is ok.. but the actual metal rod that connects it to the latch needs bent a little to make it more responsive, what happens is over time this rod (which is bent slightly) will straighten, and the operator pulls harder on the handle which eventually brakes.. then replacing the handle will solve it for a while, until the trend repeats itself... VERY common, I have fixed hundreds in the shop so far...
9/29/2018 11:24:43 AM • 1999 GMC... • Answered on Sep 29, 2018
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Where is cabin air filter in 1999 GMC Suburban k2500?

Check right behind glove box, there should be a slotted area to remove the filter.
8/4/2018 6:08:27 PM • 1999 GMC... • Answered on Aug 04, 2018
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How much is the engine computer for a 1999 chev suburban k1500 5.7 liter

Anywhere from 100 usd to 300 usd. Google ecu 1999 chev suburban k1500 5.7 And you will get some suggested locations and price. Good luck Semper Fi, Z
2/18/2018 6:42:10 PM • 1999 GMC... • Answered on Feb 18, 2018
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The AC in the front of my 99 suburban does not get

Check your temp control switch the control is not sending the correct signal to the actuator. Try turning on the heater an then dial it up/down temp and see if that works Mike
2/3/2018 7:51:39 PM • 1999 GMC... • Answered on Feb 03, 2018
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1999 GMC Suburban K1500 4x4 randomly will not

randomly will not start 3 times?????? Won't start how ? When you turn the key to start ,nothing happens or the starter engages an spins the engine but won't start an run ?
1/17/2018 11:02:42 AM • 1999 GMC... • Answered on Jan 17, 2018
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I fixed the a/c leak(high and low side ports) in

Yes add oil,it is hard to say how much without knowing how much you lost. I would guess 4oz of pag oil. And yse vacuum and charge the same. Find out how much freon to add.
12/12/2017 11:08:23 PM • 1999 GMC... • Answered on Dec 12, 2017
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1999 suburban gage oil pressure is 0 when it warms

I looked at info for 1500--5.7L engine.6 psi @ 1000 rpms18 psi@2000 rpms24 psi @ 4000 rpmsSometimes, you can use analog gage in place of oil pressure sending unit and double check oil pressure that way. If oil pressure is actually low, if high mileage engine, I doubt replacing oil pump will help. I just wanted to add, check oil pressure engine warmed up.
10/15/2017 8:08:48 PM • 1999 GMC... • Answered on Oct 15, 2017
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