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Anonymous Posted on Dec 23, 2008

No reverse reverse went goes into drive ok,i replaced cooler lines and may have run the tranny with not enough fluid.what is the best solution fix or replace? tranny is th700r4

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  • Anonymous Dec 23, 2008

    i bought the blazer knowing the radiator needed replacing,when i changed the radiator i damaged the tranny cooler lines i fixed them and then had to move the blazer out of the garage and put in enough i used the blazer to plow the driveway the storm we had last week.it seemed ok.then yesterdays storm i backed up 1 time then plowed a little. then would no go into reverse the linkage seems ok.

  • Anonymous Dec 30, 2008

    ya it sounds like i put it in neutral.



  • mmpp20 May 11, 2010

    If you have all of your forward gears and the fluid is full....It is probably internal...If you put it in reverse and give it gas do the rpms go up but you get no movement??

  • mmpp20 May 11, 2010

    Did reverse go out after the cooler lines were replaced or before? Also i am assuming the fluid is full now?

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  • Contributor 36 Answers
  • Posted on Jan 03, 2009
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Joined: Jan 02, 2009
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It sounds like the reverse clutch pack is bad, its slipping.

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Related Questions:

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1answer

2004 chevy cavalier goes in reverse fine but when put in to drive it will not go unless you push the gas pedal for a minute or two giving it gas.

Fluid level OK in tranny. Was fluid and filter changed lately. Are there any tranny leaks from gasket area or lines or out that back.
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I have a red leak that appears to be dripping from the 2 lines that run near the housing of my 94 blazer. I noticed two separate drip trails parallel from each other, about a foot or so, when I backed up...

Yes it sounds like the tranny. Possible an easy fix though. There are two line that go from the tranny to the radiator or possibly a trans cooler. The connections may be lose. There is a cheap way to fix this and that is buying the brass barbed hose fittings that will screw into were the existing line go into the tranny and get transmission cooler hose and run new lines. Or replace it with original parts. I would like to say you are probably be fine to drive it as is just make sure to keep fluid level full. But if they come completely out or break lose you will be stuck and will lose all 7 to ten quarts of tranny fluid. Also when you check you tranny fluid it has to at operating temp and the engine running. Good luck hope this helps.
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I have oil in my radiator like thick sludge, motor still runs well , is it the head gasket

You have got it right. The head gasket is defective and is allowing combustion gases and oil into the engine waterjacket and radiator. (Usually caused by allowing engine to become excessively overheated when cooling system has run dry and warping the head). The only fix is to have the head removed, machined to ensure the mating face is true and replaced with a new gasket. The valves may also require attention while the head is off.
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LOST ALL TRANNY FLUID

I hate to be the bearer of bad news but it sounds like you either lost your torque converter or the forward seal on the tranny most likely do to an inner pump problem. All this adds up to a transmission rebuild unfortunately.
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I have a 94 f350 2wd 460 auto how can i tell if i have a e4od, or a 4r100 tranny? and can a 2wd tranny be converted to a4wd tranny? thanks bob.

the E4Od does not have a bypass cooler line on the case. The 4R100 has the bypass cooler it is located on the passenger side if the trans. it goes from the rear cooler line follows the case to the front cooler line, and is attached with 7/8" banjo bolts. the bypass cooler was designed to keep the fluid in the transmission until it reached operating temp it "bypasses the cooler at the radiator until trans fluid needs to b cooled
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My blazer is having tranny problems ,I think, Its not slipping or anything but its taking a little longer to get out of 1st gear.. people who ride with me cant notice anything but i can because ive been...

they could be related yes. The transmission fluid gets cooled by a cooler assembly that is located in the radiator. you can see the lines going into one side of the tank. If the fluid gets too hot it could brake down and become too thin which would allow it to not apply pressures enough to apply the gears in the valve body. I would fix the coolant leak flush the transmission fluid and see what happens..

PS flus the fluid by removing the line that flows fluid to the transmission cooler, start the engine and allow the transmission fluid pump to purge the fluid out of the system. once its done stop the engine and refil the system, repeat 2 times.
let me know if this helped the problem
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Locked up in reverse

Sorry man but my bet is that you burnt the bands in the tranny and it will eventually spread to the rest of the gears. So I would start saving.
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My 1997 ford explorer overheated and the transmission slipped

Tranny fluid may have been contaminated with coolant since tranny cooler lines go to radiator or condensor.
I would fix your leak on radiator, then completely drain tranny fluid and filter and replace.
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Transmission only has 1st and reverse 98 dodge ram 1500 5.9L 4X4

If you removed the radiator, the transmission cooler lines on the bottom would be the first place to check. Wouldn't take much to get a kink in the line, and a possible cause for your shifting problems. Best of luck to you.
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87 dodge pickup transmission cooler

PRESSURE LINES HAVE FITTINGS, RETURN LINES CAN USE HOSE CLAMPS,ALSO YOU ARE USING A TRANS. COOLER, YOU CAN ELIMINATE THE RAD. FOR COOLING TRANS. ALSO THIS WILL HELP YOUR COOLING SYS, DUE TO A LOT LESS HEAT GENERATED BY TRANS FLUID.IF THIS IS NOT A GOOD HELP, TRY PUTING COOLER LINES IN TWO BUCKETS. START ENG.PUT IN GEAR, SO THE PUMP CAN OPERATE, PLS,MAKE A VERY SHORT PERIOD. HELPER WOULD BE HANDY, ALSO RETAIN LINES TO CONTAINERS, DUE PRESSURE.
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