Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Chevy Suburban Transmission Problems



  • Went to change the tranny oil and found that I could not get the right rear bolt out due to (it looks that the speedometer cable bracket is over the top of the pan bolt. Got bolt almost out but bracket (of which bolts are up in a very hard place to get to) but bolt to long and hits cable. No play on cable. Any suggestions. Also that large nut in corner of tranny pan on outside, is that the magnet inside?
  • fordfan_17fordfan_17 Posts: 175
    carefully remove the clip holding the "shifter" cable from the bracket and remove the shifter cable then you will have enuff clearance to get the pan down...if this is a 4 wheel drive vehicle then you will have to take the front drive shaft loose from the front differential in order to get enuff clearance to get pan out....also after you get shifter cable out. it is ok to bend the shifter cable bracket staight away from the trans pan it will help get the pan down easier and just bend back straight after pan is reinstalled. the bolt in the pan is drain plug...and yes there is a big round magnet surrounding the drain hole
  • thanks for the reply fordfan!! Isn't it funny. The transmission shop said they just unclip the shifter cable and drop pan (it is 4 wheel drive). Dealer says that the filter is a deep filter and there is no need to change filter. Just have a transmission flush.(at a $110 bucks). I will drain pan and add the need oil. I have never had a transmission flush on any vehicles and have gotten at least 180 thousand miles on all vehicles and no tranny problems. I did bolt the pan back on after trying to get that one bolt out and the pan is sealed. American transmission did say they would charge me $30 bucks to change the oil and filter I had to give them. Bravo American Transmissions (which is a nation chain). Thanks again. Great Forum.
  • trentwctrentwc Posts: 1
    I'm having the same problem with mine. Did you find out what was wrong?
  • I am now going to just drain out the tranny fluid and not worry about changing out the filter this time. I may get a flush next time. I will just use the drian plug to drain the fluid. Good luck.
  • tonheibtonheib Posts: 2
    Recently i replaced the 5.7litre 350 in my 1997 suburban. Because of the wiring harness getting in the way i disconnected it and removed the engine and tranny as one assembly. Well after re-installing the new 350 back into my truck and hooking everything back up i noticed that the transmission wouldn't go into reverse and wouldn't change gears when i test drove it. Can anyone help? :sick:
  • Hi, My family and I (including our dog) were driving home from vacation last week when our '96 Suburban (automatic, 4WD, 350 5.7L) had difficulty powering and began clanking loudly (as though a monkey were banging under the hood) while on the NYS Thruway. As soon as we pulled into Midas, one of the mechanics took a brief look under the hood and under the car and suggested a connecting rod was blown and the engine dead. To take it apart and see for certain and repair would surely be a minimum of many hundreds of dollars.

    We drove to a 2d mechanic who very promptly yelled at us for shutting off the engine given that the engine was dead, shot, kaput and might not start up again. This he said based solely on the clanking he heard which was incredible loud.

    The car has nearly 179,000 miles on it and a rebuilt transmission (in 2005). I have someone who has the 350 engine with "low miles" (he is not certain how many) and will install it for $500 (cost to remove my engine and put new one in) and will charge $400 for the engine itself. This almost seems too good to be true, for if we can do this for $900 and keep the car for our family for another few months until we are able to find a newer Suburban, it would seem we could then trade it in or resell our car for at least $2-3,000.

    Any thoughts? Are we crazy to think this might work? Right now, our car is sitting 5 hours from our home, so our options are limited.

  • kiawahkiawah Posts: 3,666
    The resell of large SUV's is dead now, because of the price of gas. I wouldn't bet on anything in regards to what you'll get on trade in or private sale. SInce it's work probably nothing in it's current condition, if you get it running then you have a chance to recover what you put into it.

    You really don't know what kind of condition the engine is in......'low miles' is suspicious.....and who knows what make or model year this engine came out of (and why it came out). What kind of warranty will this guy give you?
  • joe1234joe1234 Posts: 3
    ANyone have any problems with tran of their new suburban. I am very disappointed thus far. I have been a [non-permissible content removed] car buyer for about 20 years never a problem. I really like the look of the redesigned Tahoe and suburban and needed a large SUV for my expaned family. I bought a 2007 suburban with 1400 miles on it. The trans went at 5,000 miles. took it to the dealer they fixed it. 1500 miles later the trans is gone again. They came and got the car, but the service guy is telling me that they are replacing the trans with either a new one or a GM rebuilt one not sure how I feel about the GM rebuilt one. any one have one of these rebuilt ones installed??? hows it going???

  • kiawahkiawah Posts: 3,666
    I'd rather have a factory rebuilt model, than have the local dealership rebuilding one.
  • joe1234joe1234 Posts: 3
    I guess my feeling is that it is a new car. I would like to get a new trans installed. not a rebuilt one.
  • kiawahkiawah Posts: 3,666
    Perhaps push for a new transmission, and have fallback negotiation point to have them give you an extended warranty, since this is your 2nd failure. Probably won't get it....but it is certainly worth a try. Third failure and candidate for lemon law repurchase. Keep all of your receipts and document everything.
  • joe1234joe1234 Posts: 3
    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. :)
  • 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.
  • 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.
  • 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.
  • calvphilcalvphil Posts: 1
    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.
  • kiawahkiawah Posts: 3,666
    Good thing still under warranty
  • bcz71bcz71 Posts: 1
    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,
  • dafolkdafolk Posts: 1
    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!
  • john_njohn_n Posts: 1
    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.

  • 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
  • kiawahkiawah Posts: 3,666
    Tow it to a transmission shop.
  • My 1996 Suburban automatic transmission will not reverse when set to REVERSE, if I will set to DRIVE it runs smoothly. So my problem now is the transmission wouldnt reverse, please help.
  • kiawahkiawah Posts: 3,666
    You'll need a transmission shop to look at it. I had a '97 which lost reverse and 2nd, and it had a broken part when they dropped the pan to inspect it.
  • replaced the transmission pump,and the torq converter ,and when i drive a long distance and come to a stop and then take off again the trans ,kicks hard ,but when i turn off the engine and restarted again it shifts smooth again,but when i drive long trips or when the temp outside its hot it does it again shifts hard it kicks into gear,but during the winter it shifts smooth,what could be the cause for this ,
  • i have a 2001 chevy suburban, its not 4 wheel drive, yesterday i was driving down the road, as i approached a stop sign it like popped into neutral, it wouldnt go forward in any gear, but would go in reverse very well, any ideas what might be wrong? hopefully not an overhaul
  • kiawahkiawah Posts: 3,666
    Overhaul, off to the transmission shop.
  • bshockbshock Posts: 1
    nogo, I am having the exact same problem... took it to a shop and they say that I need a new transmission... is this what you had to do to fix it??

    Reply would be very much appreciated as I have to decide whether or not to go ahead with the replacement

    thank you
  • my 98 suburban shifts hard too when it kicks into gear after drives on the freeway, which is pretty similar to your situation, but doesn't shift like that 'round town driving. if you find out what it might be please let me know. my email: also, my service engine soon light is on, so i'm not sure if that could be related. i'll get it checked out in a couple weeks.
Sign In or Register to comment.