trainwreck91

i too have the same problem with my used 07 suburban. it didn't do it when I first bought it but very soon after. i noticed the dealer had sprayed all the doors with lithium grease. but it only lasts a short time and is pretty messy. i used a dab of marine grease and that seemed to do the trick at least for a longer time than lithium. and it's only the driver door

warf1955

My local dealership does a level 11 for 12.00 tax included with the oil change I have done. I bring my own oil and filters. I also include 1 qt. of Lucus oil treatment.. I drive a semi for a living and I have seen the effects of this additive and they are all good. The motor in my rig has over 1.5 million miles on it and only a overhead done for the jake breaks. I contribute this to the Lucus. The motor in my Tahoe runs smoother and quieter and I expect a lot of maintenance free miles on it. Since buying mine 2 yrs ago ( maintenance was not kept up) . I have put a intake and vortec gasket,radiator ( which I am sure the shop that done the gaskets busted ), alternator,thermostat,ac pump, and last a new battery.

in2pro

Knowing what I have heard about BG products now, I would probably start using them on any new vehicle purchases myself.

trainwreck91

i just used the bg 44k in my fuel system and you can definitely feel the difference! i also used the bg moa with my last oil change and put in castrol edge full synthetic and have not had any knock at startup (which was there off and on sometimes)

Deedub41

I have a 2008 Tahoe which we love. However, the driver's door squeaking is really loud and embarrassing. We've had it into the shop about 4 different times for this same issue. They greased it and sent on our merry way. There seems to be more of an issue than can be fixed by a little grease. Some one needs to inform the service techs what a better solution might be.

tech2

they fail from lack of lubrication. they should be lubed at every oil change. spray a quality penetrant lube on it or for really bad links remove it and soak it (and work it in and out) in trans fluid for a couple days. the wrong lubricant actually makes the noise worse. techs today do not fix bad parts but replace them; as people flip out if they have to return a second time for the same concern.


When people come in screaming, techs don't do the cheap fix for fear of a return visit. Instead they bill out a new and expensive part....and maybe add "a-hole tax" to the really rude customers.

intheburbs

I just did this on my 08 Burb. The roller had seized on the front passenger door. Some PB blaster on the roller freed it up. I'm thinking a drop or two on each roller of some Royal Purple 5W30 should be a good lubricant.

08 burb fan

I hit my door hinges @ every oil change withe white lithium grease and no binding or squeaks noticed. A bit messy but cheap insurance against noise.

cragit

That loud embarrassing squeaking midway on your door closure is an indication that the door hinge roller pin has seen better days.There are two hinge pins on the top hinge. Careful inspection will indicate it is the roller itself is shot. The noise will continue until replaced. The roller pin is connected to the door camming behind the spring that keeps the door from slamming shut on its own. Google "door hinge roller pin". I have included a jpeg file of the hinge pins and door hinge roller pins for identification purposes only. The door hinge roller pins are in the top right corner of the jpeg. This should help to identify the problem, if you have the dealer or a repair shop do the work. If you are a do it yourselfer, YouTube has vids that will help through the hinge pin rebuild. The spring compression tool is needed in order to remove and reinstall the spring. Greasing, as indicated in earlier posts, is a very short term fix as it does not address the fact that the roller pin is beyond the benefit of lubrication and requires actual replacement. When I replaced mine, the roller was not even close to being parallel to the pin. If you have vertical movement or sagging on the door that no longer aligns (tough to close because of sagging), best to replace the hinge pins and bushings at the same time.