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Chevy Suburban Transmission Problems

74 messages,  Last post on Dec 04, 2009 at 4:41 PM

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What is this discussion about? Chevrolet Suburban, Chevrolet Silverado 2500, Transmission, SUV

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#48 of 74 Re: 2007 Sububan Trans problems [kiawah] by joe1234 Aug 21, 2008 (6:55 am)
Replying to: kiawah (Aug 20, 2008 8:17 am) Any idea how that lemon law works?? I expect the dealer knows and will fix the problem this time as they don't want to have to wright me a check.
#49 of 74 84 Diesel 6.2 Transmission Problems by paulution Aug 24, 2008 (7:48 pm)
I recently bought a very clean 84 Diesel Suburban 4 x 2. The origial owner told me that he had changed out the rear end to some other gear ratio (I haven't checked to what yet) as the original rear end caused the engine to "wind too high," but, that this was done at the expense of fuel economy. He also showed me the papers for the recent rebuild job on the transmission. Well, two months later I believe I fried the transmission on a road trip. It started shifting back and forth like it was going in and out of overdrive on straight, level highway. Then, when I pulled into town it started acting like it was a manual transmission with a bad clutch. I got it to crawl it's way to a nearby hotel where, when I shut the thing off, I could no longer get it into reverse or park. The fluid on the dipstick smells terribly burned. I had it towed 100 miles home (thank God for AAA). At any rate, after reading various postings on this forum, I have some questions. I am considering just trying to find a transmission at the junk yard as a temporary fix. Is there anything I need to know about any necessary adjustments I may need to make to accomodate the gear ratio of my suburbans differential? When I am finally able to scrape the funds for a professional rebuild, what's my best option and how much might that cost? When I say "best option," I am asking whether there are known remedies for what seems to be a far too common problem with suburbans that their transmissions suck and whether people know of a reputable chain with a good warranty on their work. Any and all suggestions are welcome as I am totally green to Suburbans, the 6.2, and their transmission issues.
#50 of 74 no first and OD by bstaples1 Sep 22, 2008 (9:39 am)
99 gmc suburban trany started out skipping second now second is back but i lost first and OD is this the trany or could this be shift solonoid. any help is great.
#51 of 74 Re: 98 GMC Suburban 2500 7.4L 4x4 question [pbuono] by okierod Sep 23, 2008 (9:29 am)
Replying to: pbuono (Feb 15, 2007 10:56 pm) I have the push button 4WD and when I engage the 4WD and drive it for 1-2 miles the service 4x4 light comes on but I still have 4WD. But I cannot disengage the 4WD until I turn off the truck for a few minutes then re-start it and it will then dis-engage. Anyone?       I have a 2000 suburban that is doing the same thing and was wandering what you did to correct this 4wd problem.
#52 of 74 Re: 2007 Sububan Trans problems [joe1234] by calvphil Apr 16, 2009 (12:13 pm)
Replying to: joe1234 (Aug 20, 2008 6:51 am) I own a 2007 Suburban, one week ago I took it to local dealer for it's 30,000 mile check. I had transmission serviced. The following week we took a vacation and drove about 800 miles. One day after we got home the transmission went out, just like that, no warning. No forward gears, only reverse. Toed to dealer who rebuilt it, just picked it up today and now it feels strange. I too have only had Toyota, I am now sorry I bought this vehicle. It has also had the drive line replaced and fuel pump replaced and all this in under 30,000 miles. I would trade it, but it is worthless. I totally understand why GM is bankrupt. I'm just another sad GM owner full of regret. After this, hello Toyota again. There is a reason why Toyota products hold there value, they are well built, and have quality products. Replies to this message: kiawah (Apr 16, 2009 12:51 pm)
#53 of 74 Re: 2007 Sububan Trans problems [calvphil] by kiawah Apr 16, 2009 (12:51 pm)
Replying to: calvphil (Apr 16, 2009 12:13 pm) Good thing still under warranty
#54 of 74 Stuck Input Sprague by bcz71 Jun 16, 2009 (10:29 am)
My 03 (58.5K miles) Suburban had an instance this weekend where the transmission slipped on light acceleration from a dead stop. The dealership tells me a code was present that correlates to a stuck input sprague. I also noticed a noise that sounded like a noisy power steering pump from 1st to 2nd and 2nd to 3rd. They tell me that the pump was boosting line pressure as a result of the stuck sprague and the noise was consistent with the increased pressure. I have no idea what a sprague is, but what I'm really curious about is this a sign of more problems to come? The tech said left alone it would eventually take out 3rd and 4th gears because the sprague wouldn't disengage. He went on to say anything that was he was in doubt about would be considered damaged and replaced. He said it would probably result in almost a full rebuild. Have any of you experienced this type of failure and if so, did other transmission problems emerge later? I have been very faithful (and perhaps spent too much money) in making sure the trans/transfer case/front and rear diffs were serviced regularly.    Thanks for your input, BC Replies to this message: dafolk (Jun 22, 2009 2:21 pm)
#55 of 74 Re: Stuck Input Sprague [bcz71] by dafolk Jun 22, 2009 (2:21 pm)
Replying to: bcz71 (Jun 16, 2009 10:29 am) I don't know how to put this. I have an 05 sub at about 53,000. Blew tranny last year. Pulling two motorcycles through South Carolina. The tranny had actually reacted similarly earlier last year by slipping at a light with a little bit of a load. It would actually happen infrequently, but I was always skeptical that this was a sign of something more to come. It did. It was hot out that day and we had stop and go traffic the Tranny shifted down from OD to 2nd to accomodate the cruise setting. Long story short... Hit one hill the tranny let out a gawd awful whine (sounded like power steering pump) and one hill later the tranny was grinding awfully. Horrid sound. I knew the tranny was chucked! - No over heated tranny light or indication on the display. I am assuming that you didn't have the load I had. (I was fully packed for the beach 5 people in the machine towing my motorcycles. Chucked both planetaries front and back. 'AAMCO' replaced those and some seals installed a new updated' pump body (supposedly to improve fluid flow.) and recalibrated the Transmission shift points. The main issue they said was that the fluid pump - quit pumping fluid. That is essentially what caused a catastrophic breakdown. (I love my suburban's, this sucked! $3k to have fixed!) Kinda ruined my vacation too. I don't know what you could do to prevent this. Other than having a tranny place pull your tranny and check the parts thoroughly. (Supposedly I could have had GM install a new tranny for $1500 with 100k warr. Who knows now.) Hope this helps!
#56 of 74 Transmission oil change by john_n Aug 02, 2009 (1:13 pm)
2001 1500 Suburban 5.3 4WD 125K miles. I bought with 75K miles and do not know if trans has ever been serviced. If I service, pan drop and filter, can or should I use synthetic oil - happen to have a case of Royal Purple.   John
#57 of 74 98 suburan tranny by nogovmotors1 Aug 06, 2009 (4:46 pm)
i have a 98 sub. and when put into any gear i can drive for about 3 min. then it acts as if i put into nutural, the motor revs up but the tranny will not engauge. if i turn it off for 3 min or so it will do the same thing. what is wrong with it and is it cheap and easy to fix??? thank you so very much Replies to this message: kiawah (Aug 06, 2009 5:08 pm) bshock (Oct 06, 2009 8:29 am) maker (Dec 04, 2009 8:58 am) nogovmotors1 (Dec 04, 2009 4:41 pm)

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