20 Most Recent 2008 Chevrolet Suburban - Page 5 Questions & Answers

If your sending unit is one wire, unhook it from the sender and place a jumper wire from wire to ground. Turn ign on, gauge should pep high PSI. Two wire plug, place jumper between contacts of wires (unplugged). Same thing. What this does is isolate the gauge. If gauge pegs on test, replace sender. If it does it again with new sender, it's the pump. But it's probably the sender.

This is due to internal wear in the differential and should be looked at by a technician you trust before it gets too bad and leaves you stranded.

Your door actuator is bad. You need to go to the dealer to have it replaced. 3 of ours have gone out - I'm waiting for the 4th to do it too!

have someone pull down on the tire while someone cranks it down and see if that gets it unstuck

REMOVE PVC VALVE WITH VACUUM HOSE STILL ATTACHED CHECK FOR VACUUM AT PVC VALVE PLACING FINGER OVER IT.IF NO VACUUM FROM PVC VALVE BUT THE HOSE TO PVC VALVE HAS VACUUM REPLACE PVC VALVE.IF NO VACUUM GETTING THROUGH PVC HOSE AND VALVE.LOOK FOR DISCONNECTED BROKEN VACUUM HOSE OR OBSTRUCTION IN VACUUM HOSE BLOCKING OFF VACUUM.

Have you checked the u-joints in the driveshafts?

If you have children that play with the remote itself, it's very possible that they have pressed a certain code and set the alarm to do that. My 18 month old loves to play with my keys... which was fine until my tahoe started cranking every 3 hours. When I took it to a mechanic, they determined he had pressed a key code to make it auto crank. They reset it and I haven't had a problem since. Hope this helps!

Check out the following link, it is a step by step process to getting the fix...
http://www.chefseattle.com/blog/site-news/suburban-rear-liftgate-wont-unlock-how-to-fix/

if you mean you put the battery on the wrong way around i think you may have cooked the computer ,not entirely sure here but i do think you should get a local mechanic to have a look for you and see what he says but i think it may be an expensive repair

The transfer case has a broken gear or drive chain you may be able to remove the cover and service the unit without needing to pull out the unit. The drive shaft to the rear differential must be remove to do so.

sounds like a bad speed sensor somewhere. Have the dealer look 2008 should be under warranty

I agree with the transmission fluid change.The differentials don't need anything unless they are leaking.You can do all this at home for less than 100 dollars including the other stuff they recommended.

It does sound as if something is drawing the battery down. First thing you need to do is to check the battery...have it fully charged and load tested. Once it's been established that the battery is good, disconnect one cable from the battery and put an ammeter between the cable and battery post. Any draw will show on the meter. At that point, begin removing fuses one by one till the draw stops. that is the system with the problem...then you need to check each component served by that fuse (wiring and relays as well) Your radio will draw a small amount to keep the clock running and some alternators will have a slight draw as well but those should not be excessive.
Ice on the inside of the windshield is often caused by a blocked a/c drain causing the inside of the heater box to have water inside...with the heat on, the water evaporates just enough to condense and freeze on the glass under certain temp conditions. If you have water in the cooling system, (not antifreeze) that can also happen if the core is leaking, but I doubt if that is the case as you'd have larger problems by now than just a bit of ice on the windshield. Under certain normal humidity conditions it can also happen in a normal system so if it only happens once in a while, don't worry about that.

If this is a factory alarm then possibly the driver's door power lock actuator is bad. 2008 Suburban may still be under factory warranty. Check with your dealer.

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Yes...That's probably a 50 or 55 series tire which by the nature of it's short sidewall will give you a "stiff" ride as compared to a more typical 70 series. Verify that the vibration does not come only when you are braking or accelerating. If you vibrate only when cruising then 95%(unofficial stat) of the time it comes from the tire/wheel/balance assembly.

HAVE A FRIEND PUSH ON THE GLASS WHEN YOU TRY TO OPEN IT THE NEXT TIME. THE LATCH INSIDE IS LOOSE AND NEEDS TO BE TIGHTENED. BY PUSHING ON THE HANDLE IN THE GLASS DOOR YOU CAN RELIEVE THE PRESSURE FROM THE LOCK AND OPEN IT THEN LOOK ON THE UNDERSIDE OF THE HANDLE IN THE GLASS THERE IS A SMALL METAL PEG WITH A NUT AT THE BOTTOM I THINK IT 7/16 OR SOMETHING LIKE THAT. TIGHTEN IT UP AND YOURE ON YOUR WAY

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your 4x4 electronic control switch may have gone out and that is why it is stuck in that gear it is located on the transfer case i beleave its on the right side its black with a couple screws holding it and wire coming from it but i may be wronge and it could be on the left been a while since i had to change one

It seems that your problem is actally the amp you are trying to use, many have either a switch or pontiameter to allow the speakers you are running either to play mid-range or low-range (sub) take a closer look at your amp that you are using

I drive a 2008 Suburban LT and my company has a true work "fleet" suburban. The only difference between these two that I have is the back of the fleet vehicle has a thick rubber mat in the back with no seats. After removing the black mat I found that the channels and rods that the rear seats clip into are present. The third row seats are installed by clipping them in no bolts or tools are required.