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SUVs Chevrolet Blazer Chevrolet Blazer GMC Jimmy Transmission Problems
221 messages, Last post on Nov 29, 2009 at 4:31 PM
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i have an 86 k5 blazer with newer goodwrench 350 and i believe a 700r4 trans ..it wont shift past 2nd gear and was told after they looked at it it needs rebuild wich i dont have money for.. i can get a used one that came from a suburban and want to know if #1 if it will fit and #2 if anything i need to worry about with changing it i been fixing cars over 20 years but never changed an automatic trans any help is very grateful ty
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Replying to: bdp68 (Jul 28, 2008 4:50 pm) |
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I recently bought a 1998 Blazer that hadn't been run in 2.5 years. I got it running quite easily and checked the tranny fluid level when the engine was cold and it registered way above full/hot. I took it for a test ride to get the fluid hot and rechecked the fluid. It didn't even register on the dip stick. I added almost 3 quarts of tranny fluid and got the level up to where it should be with a hot engine. I ran it for a couple of weeks and started noticing tranny fluid puddles after everytime I drove it. The leak isn't coming from the transmission area but from somewhere in the front of the engine compartment. There's a plastic shroud under the front of the engine/radiator that restricts me from seeing the source of the leak. I recently rechecked the tranny fluid while hot and it's barely registering at all on the dip stick but when the engine is cold the fluid level shows over full. Where do I start?
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i have a 97 blazer LT. the 2-3 solenoid has been replaced,the vehicle speed sensor is new also.i was driving the other day the service engine soon light came on then the transmission quit pulling all together. it wont go into any gear.it runs and starts just fine but will not move. the trans filter was changed a year ago. it was shifting funny when it got warmed up.as long as it was cool it was fine.it also had some trans fluid come out of the pressure line next to the transmission fluid stick not to long ago. please help. 
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Replying to: kruz (Jul 30, 2008 12:09 pm) And there is a supply line and a return line that go from the transmission to the radiator and back to provide cooling for the tranny. If you are seeing fluid up near the radiator, one of those lines or the connection to the radiator is bad. Follow the lines all the way to where they connect to the radiator (passengers side, near but below the battery) and you should see the leak. |
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| My sister has a 97 GMC Jimmy and has been having the "stuck in third gear" issue. Tried replacing the ignition switch and it didn't help. Resetting computer didn't help. Was thinking about digging in and just replacing all the solenoids in the transmission along with the filter and fluid. But then I found the TSB for this exact issue so now my thinking has shifted in a completely different direction. She lives over an hour away but as soon as I get a chance will be checking fuses and the wiring and voltage to transmission. TSB mentions cause being aftermarket remote starter installed which my sister had until I replaced ignition switch. Hopefully I get this fixed soon and maybe this will help some of you out too. Key Switch TSB | |
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they are having the same problems. they don't have 1st or 4th and the only way i get second is if i shift it manually. if i just put it in drive its stuck in 3rd gear. replace all the solenoids on the valve body on the 97 didn't fix. throwing p753, p785 codes any help would be appreciated
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| Hello all...I am the new owner of a 97 blazer.....with a bad transmission.I have learned that people who already own these trucks will be the best to help.History : she said one day it started out from 1st gear,banged into 3rd(skipping second) and never shifted to overdrive (no reverse either).She parked it.I have acquired it for my 15 yr old daughter.I drove it home and yes it is exactly as described.Before I left I checked the trans fluid...it didn't register on the dipstick while running.Two qts topped it off.I drove it home with 1st & 3rd seemingly working fine.I am not familiar with Chevy so I am looking for 2-3 starting points for diagnosis.Usually when I help others I start with the best scenarios first getting to the worst.I am not really in a hurry but certainly curious as to what kind of deal I got for $300 in trade.Thanks in advance to anyone who can get me started. Dave | |
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I recently bought a 1998 Blazer (automatic). The transmission "surges" while cruising at just above 40 mph with the tach jumping between 1000 and 1500 rpms. I can feel the "surges" that are in rapid succession while at that speed. Other than that issue, the transmission seems fine. Any ideas what's causing this? Kruz |
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