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Originally Posted by pm77
I took the truck to the dealer and he suggested to replace the transmission. Also gave me a huge estimate. Then I took the truck to another mechanic and he is driving since yesterday and didn't notice any problem with the trans. He is suggesting not to change the trans. and just drive until it gives any shifting problem. Currently according to the mechanice the check engine and trans light is also not showing up.
Puneet
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I was just wondering how your tranny was holding out. I talked to a tranny guy and he said the 4l30e does not trip the check tranny light until it detects three consecutive faults. Meaning on your first and second trip the computer will chalk up the error to a possible missread. On the third consecutive trip the check tranny light will go off. So you can drive a hundred or two miles before your light comes on. Same goes for the check tranny light shutting itself off. I was quoted $5000 Canadian for a replacement tranny(before labor). If I double that I can buy myself a pretty decent used car. . the tranny guy said the P01870 was the "Mystery code" they have a list of ten possible faults that cause that code. The guy said a lot of times its just better to replace the tranny. He quoted me 1500 to 2500 to take down the tranny and find the fault. Life sucks what are you gonna do.
John
Let me know how your making out with P01870