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An Honest Mechanic....honestly!

bflat

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bflat Enthusiast

bflat

Posted
Posted

Finally found an honset mechanic here to tell me what the problem is with my tranny. I have a 4l80e under my K3500. This rig has 211,000+ miles on it. The tranny still pulls strong, but when I got up to higher speeds and hotter temps, the O.D. would would be D.O.A. Other Tranny "Experts" would just shoot me a price for total rebuild.

Yesterday, this guy actually goes out to my truck with me, plugs in the largest OBD2 I've ever seen and proceeds to read my trucks fortune like a cheap psychic with a crack addiction. Then he proceeds to actually drive it around town to be sure of the problem before he goes in depth to explain.

Appearantly, when my tranny is getting hotter, the seals internally are expanding, and the entire system is not functioning 'hydrolicly' as intended. What I have taken to be smooth easy shifts all along, are actually lazy, slipping shifts that are a sign of seal failure. The torque convertor is not allowing the system to perform as it should either. (something about stalling or not stalling at the correct time) When it gets hot, it expands pushing into the front seal, that explains the temporary leak I have everytime I park it.

Long story short, he says that he will replace only the parts that need to be fixed, And gave me a price that it would not exceed for complete repair.

 

Now, before you start to assume that I am an idiot like my wife does every time I "pop the hood", I have torn into this tranny before, and replaced every sensor that I could find. The sensor replacements did not fix a thing, I have replaced the torque convertor, however, with the help of the dumb-asses that waste oxygen behind the counter at Pep Boys, I do not belive that I installed the correct one. Pretty sure it is supposed to be a high stall T.C. I may only have one question to all you certified guys out there, are the internal seals something I would want to attempt myself, or should I just let the pro do it when I can afford it? I have the understanding to fix almost anything on this truck, including the entire front end rebuild. However, control arm bushings, and hub bearings are not liken to tranny guts. What do you think?

97SierraGMC Senior Enthusiast

97SierraGMC

Posted
Posted

well if you have the tranny out and cant fix it, it will be cheaper for a guy that knows what hes doing to now fix it.

 

when the tranny went out on my old truck to rebuild it, it would cost

 

$1500 still in the truck

$500 if i took it out and put it back in myself

 

guess which way i went :)

tobias Senior Enthusiast

tobias

Posted
Posted
well if you have the tranny out and cant fix it, it will be cheaper for a guy that knows what hes doing to now fix it.

 

when the tranny went out on my old truck to rebuild it, it would cost

 

$1500 still in the truck

$500 if i took it out and put it back in myself

 

guess which way i went :)

 

Both? :):D

sillyazz Enthusiast

sillyazz

Posted
Posted

With 211k I would go ahead and have it rebuilt . I would not suggest replacing the seals yourself if you have never had a transmission apart, to much stuff can go wrong.

bflat Enthusiast

bflat

Posted
  • Author
Posted

Hy guys, think I will let the "honest" mechanic have at it. It has to last me at least one more year, still cheaper than that new truck payment, right?

 

I think I will call him on the take it out myself trick. I don't think it will save me a grand, but it is worth a shot. Only one question, How do I get the wife to agree to letting me put this huge thing in the back of her new van? :nono::dunno:

merlin5577 Senior Enthusiast

merlin5577

Posted
Posted
Hy guys, think I will let the "honest" mechanic have at it. It has to last me at least one more year, still cheaper than that new truck payment, right?

I think I will call him on the take it out myself trick. I don't think it will save me a grand, but it is worth a shot. Only one question, How do I get the wife to agree to letting me put this huge thing in the back of her new van? :nono::dunno:

 

Hell yea. Plus you know going forward you never have to worry about the transmission again. :lol:

 

Umm.....Tell her your going to bring it to be cleaned, it will need it after having the transmission in it. :lol:

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