Six problems related to transmission gear slipping have been reported for the 1997 Chevrolet Blazer. The most recently reported issues are listed below.
P 1870 transmission slippage code. I have abrupt shifting between 1st and 2nd gears. Trips over 20 miles seems to aggrevate the situation. Occasionally after the 20 plus mile trip the transmission seems to wind up as the gas is applied and the vehicle doesn't respond with forward momentum.
Transmission started failing at 25,000 in August 2001 on a 1997 Blazer. !st repair found transmission cooler clogged with blue plastic, mechanic thinks it was part of a plastic cap to cver ends of cooler assy before it was installed at the factory cost to replace cooler and service transmission $290 2 weeks later transmission problems came back - hits gears hard and when making right or left turn with out stopping and applying gas after turn transmission was slipping. Transmission shop torn down transmission foun rusty dip stick, alot of burn marks on various parts, screens clogged with dist substance, metal grindings in pan, valve assy rusty, replaced converter total cost $1717 drove vehicle 1 day problems started again (slipping) mechanic at his cost changed converter and checked his work found everything ok -results still slipping. Mechanic told me at my cost I need to replace the pump in the transmission said this is unusual to have to replace. Told me new punp for this vehicle was quoted to him at $800. I was so sick over this, stressed ouyt and could not sleep for nights decided to chance it at get a used xmission from junkjard and take the pump out $400. Mechanic did not charge me labor to put the pump in total bill = $2407 the transmission mechanic said in all the 25+ yrs rebuilding transmissions he never experenced any thing like this. This is a crime for gm to not do anything about these failures knowing so many people are having simulr problems in the Blazers.
When first experienced we were coming home from hershey on a hot day when we came to a traffic light. When we proceeded the transmission shifted real hard into second gear causing us to jerk back as the truck jerked forward. This problem continued everytime we would come to a complete stop. We were able to make it to our mechanic and drop the Blazer of. The next day when the mechanic looked at the vehicle he could not detect any malfuctions. Approx. One week later we drove to new jersey, the truck was fine until we came to our first traffic light in ocean city NJ when the problem started again but this time the check engine light came on. When leaving NJ the problem started when we had to stop at our first toll, this time I pulled over let the Blazer rest for a while, then started back home and it was ok for awhile but then started acting up again so I pulled over and turned the truck of for about a minute and it was ok for a while again. I noticed that everytime it acted up and I pulled over that I just had to turn the vehicle off and turn it right back on and it would be ok for a while. When returning home our mechanic could now scan the service engine light and reported gear slippage. He talked to a transmission specialists who said this seems to happen on long hot trips, who suggested that this problem can last for years before the transmission would need to be replaced. Contacting aw golden they said they could not help us because the warranty had expired at 36000 miles and we had 41196miles. Contacting gm they said the same but if we would trade it in they would give us a 2000 dollar loyalty. We declined because we like the Blazer and would have liked them to give that money to fix the problem. Contacting bbbautoline they said they couldn't help us. We just came from phila. And the problem occured again to and from. Checking the internet we noticed several problems with gm transmissions and decided to contact NHTSA.
The transmission had a slip. The valve inside the transmission is too small and pressure builds up when it gets hot and dirty. I had the vehicle in at 35k with the problem. They didn't replace the valve, only cleaned it. Then at 68k, they said they would have to tear the tranny apart and replace the valve. They wanted $1200, I found a tranny specialist who fixed it for $250. He said the original vavle was the problem. I have found hundreds of Blazer owners with this problem and chevy is making us pay for their problems.
Transmission slips from 2-wheel drive into 4-wheel drive. Took to car dealer at 31k+ miles. Told dip stick rusted. Transmission slipped on 3 occasions previously from 2 wheel to 4 wheel drive at speeds between 45 -55 mph. At dealer now with just over 52k miles and told transmission will probably be replaced, estimated cost $1800. Believe this occurs more frequently than reported and unsuspecting owner are shelling out excessive money for faulty transmissions.
Engine check light comes on. Vehicle would lurch forward after shifting into 2nd gear. Been to dealer. Informed transmission needed to be rebuilt or replaced. Took to transmission shop & had it replaced w/rebuilt transmission which is slipping. Taking vehicle back to dealer.