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Chevy Suburban

944 messages,  Last post on Nov 20, 2009 at 6:44 PM

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What is this discussion about? Chevrolet Suburban, GMC Suburban, SUV

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#710 of 944 Re: Electrical issue? [burb] by catam Nov 27, 2006 (8:47 pm)
Replying to: burb (Nov 01, 2006 7:37 pm) Burb, Well I have fixed most of the problem, with my interior lights. There is a fuse (actually 2 or 3) in the interior fuse box on the side of the dash on drivers side, labed TBC. TBC stands for truck body controls, and could mean a great number of things. At any rate once I learned of it I pulled the relevent fuses and sure enough I had one out. This fixed 85% of the problem. The main dome light between the first and 2nd rows still does not work, (I plan to check to connections, but haven't had a chance.) I honestly forgot to even check about the underhood light. I hope this helps, and sorry I took so long to get back to ya. CATAM.
#711 of 944 90 Suburban Heater Problem by wmbigs Dec 13, 2006 (8:52 pm)
I have a weird problem. The heat blows out the heater ducts and a little out of the vent. The defrost doesn't work at all. It doesn't matter what outlet I select. If I downshift to drive, then everthing works fine until the rpm/speed come down a bit. In town it never works. Any ideas or things to check? Thanks, MikeB Replies to this message: hungdtran (Feb 08, 2008 4:36 am) mudrat (Feb 26, 2008 9:14 am) mudrat (Aug 24, 2008 8:49 am)
#712 of 944 wmbigs by catam Dec 15, 2006 (8:44 pm)
Check your intake manifold for a vacuum leak. Many older GMs used a vacuum actuator to control duct venting. Also check the vacuum actuator, I'd bet you have a leak somewhere, just find it, and fix or replace the leaking part.
#713 of 944 1998 Suburban No Roof Dome Lights by hegner4 Dec 28, 2006 (5:47 pm)
I just bought a 1998 Suburban yesterday. Very nice ride loaded 174,000 miles. I noticed one problem last night. When I open the doors I have no dome lights on the headliner but the lights on the doors all work except one. (Burned out I think haven't figured out how to change it yet.) Anyway I have tried pushing the dome light over ride button it does turn off the door lights but that is it. I took the cover off of the lights on the headliner bulbs are good tested the contacts with a multimeter. No power to the contacts. Not sure where to check next although all the fuses are good. Any ideas???? Replies to this message: catam (Dec 28, 2006 8:48 pm)
#714 of 944 Re: 1998 Suburban No Roof Dome Lights [hegner4] by catam Dec 28, 2006 (8:48 pm)
Replying to: hegner4 (Dec 28, 2006 5:47 pm) Had a similar prob on my 03 Burb. It ended up being a blown fuse. In you interior fuse box, (the one on the drivers end of the dash) there are several fuses labelled TBC which stads for truck body controls. Pull them and replace the one thats blown. Good luck and hope this helps.
#715 of 944 '88 GMC Suburban with a problem by ozarksuburban Dec 29, 2006 (1:58 pm)
Replying to: steve_ (Dec 08, 2004 11:21 am) I am not sure how to post this on the GMC Suburban forum, so here goes, and yell away if need be   I have recently acquired an '88 GMC Suburban, who runs wonderfully, but be it 50 feet or 50 miles it eventually gets very weak, engine light pops on and bam she dies. I've changed plug wires, inline fuel filter, and am getting ready to change the distributor cap, but any suggestions as to what is causing this would be much appreciated as I'm beyond baffled at this point and ready to sell the thing for scrap! Replies to this message: hungdtran (Feb 08, 2008 4:41 am)
#716 of 944 service engine light by raetater Jan 03, 2007 (7:14 pm)
I have a 95 GMC suburban. When I set at a light or behind a school bus my engine light comes on. I have been told that it is the idle is too high at the times. I have even kicked the engine down when stopped and it still happens. Could this be a short somewhere or is this just the start of a big problem to come?
#717 of 944 Re: Speedometer and rear wiper issues [bochevy] by jfitz76 Jan 13, 2007 (3:15 pm)
Replying to: bochevy (Jan 18, 2006 7:55 am) Well that didn't take long...I came to this forum to see if I was the only one who's speedometer appears to be 120mph but really I'm only driving 35mph....Right when I start my suburban it reads 30mph?? Are you still having a problem? Our Burb is an 04 with 36,000 miles~ Would love to hear if anyone else is having this problem. Replies to this message: catam (Jan 13, 2007 5:33 pm) michml320 (Jan 14, 2007 11:27 am)
#718 of 944 Re: Speedometer and rear wiper issues [jfitz76] by catam Jan 13, 2007 (5:33 pm)
Replying to: jfitz76 (Jan 13, 2007 3:15 pm) Read through older posts, this issue has been discussed, I believe IIRC, that the fix is a new instrument cluster. Good luck.
#719 of 944 Re: Speedometer and rear wiper issues [jfitz76] by michml320 Jan 14, 2007 (11:27 am)
Replying to: jfitz76 (Jan 13, 2007 3:15 pm) This just happened on my 04 Tahoe. I believe it is an instrument cluster problem and an easy fix. Should be covered under warranty if yours still applies.

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