Last post on Oct 25, 2013 at 7:32 AM
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Chevrolet Blazer, Transmission, SUV
#88 of 384 Re: 2000 chevy blazer tranny issue [r8r_n8shn]
Jul 09, 2007 (1:54 am)
The part may have been the TCC in the trans as it effects the hard shift. Usually a new filter helps as any crap in the trans gets in the valve body and the computer adjusts the pressure to compensate. But if the 4wd is acting up the PCM/omputer adjusts shifts and pressures in 4wd so that would be a reason - see if the dash switch is fully connected or plugged in, and as you said you are not a car person so take it to the dealer to determine which other of the many sensors etc for 4wd is bad.
Jul 11, 2007 (7:19 am)
Can someone tell me what code P1870 is for a 99 Jimmy?
#91 of 384 My Blazer LT 97 almost burn twice, Why?
Jul 18, 2007 (7:36 pm)
Hi, my blazer almost got burned twice, first time in summer in a long trip, oil came out of the transfer case, leak over the exhaust system and burned all the electrical wires. The mechanical said that a malfunction of a seal between the automatic transmission case and the transfer case, allow the oil from the transmission filled up the transfer case. The seal was replace.
Two days ago, again oil came out from the automatic transmission and almost burn the car again, but I saw the smoke come out of my car and stop the engine on time. Now the mechanical can't figure out what happened, they said that a a little device call "Quick Down" present a failure that's making lose oil again. truly I don't believe them anymore...
Any ideas (besides selling my car)?
Thanks, just for reading my rusty english.
#92 of 384 Re: My Blazer LT 97 almost burn twice, Why? [lauchon]
Jul 21, 2007 (3:58 am)
That seal could have been bad and the transfer case will then fill up and overflow out the top at the 3 port vac switch for the 4wd. Transmission has a vent on top also so check the fluid level and make sure its not over full (when hot at idle in park check dipstick. Then is the cooling system OK as the trans fluid goes thru the pass side of teh radiator and if it overheats will expand - are you towing something in D which is really overdrive?
#93 of 384 98 GMC Jimmy 4x4
Aug 01, 2007 (6:14 am)
I have recently noticed a exciting new noise coming from down below. I believe it is coming from the right front and my wife said she could feel it in the floor of the passenger's side. Let me give you a history. In April it had the front end bushings and CV axles replaced. I took it to a reputable 4x4 shop, so I trust the work. Now, three months later this. If I had to describe it, it is kinda like someone is taking a hammer to the floor. Not constant. It's not too loud and doesn't seem to be linked to the tranny. 4WD works with no change in noise. Anyone's help would be greatly appreciated.
#94 of 384 Question Reg: My Blazer LT 97 almost burn twice, Why? [repairdog]
Aug 17, 2007 (12:38 pm)
this sounds like something I'm having issues with and could use some advice/help. My 4wd 98 Jimmy (just over 200k mi)has had 4 transmissions in it since July 2006 - I have a 2yr warrent. on it. Needless to say I'm a bit miffed at the shop for all this hassle. I never tow anything, but they seemed to the the tranny was overheating so with the last transmission they added a tranny cooler to it. Well that was this spring.
This past week I noticed that when I was re-accelerating between 40 and 50mph, and typically when going uphill, the Jimmy seemed to hesitate almost like a couple before it settled down. So I took it to a shop I trust - they put it on a reader and got nothing, we drove it on the reader - it acted up just like always - but no reading. So he sent me to another transmission shop. They found the tranny stick 1 1/4 low, fill it, and then test drove it with me. No hesitation on this short drive. When we get back to the shop they check the dipstick again - and it's low. So he fills it again and schedules me for a better inspection the next day. I took it in the next day - they tell me I have a leak in the transfer case and that I should take it back to the tranny shop where I have a warranty. So when I take it back to the original transmission shop the mechanic takes me out while its up on the lift and shows me the gasket between the transfer case and the tranny - there's not a trace of oil..or anywhere else on the transmission. The only transmission oil is under the plug on the back of the transmission case where he tells me the previous shop let the extra transmission fluid out of the transfer case. He then tells me it's a seal on the inside of the transfer case that's allowing the transmission fluid to fillthe transfer case and that's not covered under a transmission warranty. He'd fix it for $175 - the first transmission shop said they'd fix it for $275. So finally I take it to Tuffys - and tell them the whole bloody story, they put it up on the rack, check the radiator fluid for foreign fluid, look at the underside, check the transmission fluid on the stick and in the transfer case - and find NOTHING WRONG! However, since the fluid had recently been topped off they suggested I drive it for 50 miles or so and bring it back for a 2nd look-see. I've been told by 2 shops that the fluid in the transfer case can come out the vent if it overfills and shoot onto the exhaust and start a fire. So now I'm confused, and frustrated and do not know where to turn.
Does anyone have a similar story, or suggestions? PLEASE? I'm a girl who's just now learning about her car, so any information about this would be very very helpful. thnx
#96 of 384 blazer transmission problem in Guam
Aug 25, 2007 (5:57 pm)
My 1995 blazer with 100K miles only shifts from 1st to 2nd and back. Reverse works fine. It shifted into 4hi when I tried that but still only 1st, 2nd and reverse. Just had flush and fluid done by general repair shop. Didn't solve problem. They say needs $2500 rebuild. Does anyone have thoughts on what the problem is and if that quote is reasonable? Thanks.
#97 of 384 1995 Jimmy Tranny Swap
Aug 28, 2007 (9:08 am)
I have a tranny from a 1994 Jimmy that I want to have installed into my 1995. The tranny is out of the '94 and I found a few model numbers on a paper barcode and a metal tag on the tranfer case. It was a body style change between those two years but is it the same transmission? Both are 4.3L 4x4 4 door Jimmy's. How can I be certain it it will be a direct replacement for the '95?
Anything to look for?