P0757
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P0757
I have had this code come on twice now.. I have a 2500 stall... so what I have read the TC should not be the problem.. when code comes on is when coming to a stop then truck doesnt wish to move, maybe is trying to move in 3rd gear??? I can manually put into 2nd gear and it goes fine. If I put into
1st gear it makes noise so I shift out immediately... Is B solenoid going out or is it more serious problem?? If kill the truck & go eat etc & start again all is normal except for check engine light stays on for a while..
1st gear it makes noise so I shift out immediately... Is B solenoid going out or is it more serious problem?? If kill the truck & go eat etc & start again all is normal except for check engine light stays on for a while..
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FormerVendor
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When this happens are you driving the truck hard? I know your converter stall is not that high but I have seen this code get thrown in a 2400-2600 converter. In most cases with a stall converter the tests in the computer for a PO751 and PO757 should be removed. I do believe the condition you are seeing is a limp mode condition which in this case is 3rd gear starts. I believe some tuning will fix your issue. How long have you had the converter? Vince
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thanks for replies...
both times this has happened, I was driving easy.. 1/3 throttle at most before coming to yield or stop... the last time the truck had been sitting for half hour or so since a 5 to 60 mph run..... the first time the throttle had never been over 1/2 the entire day.
both times this has happened, I was driving easy.. 1/3 throttle at most before coming to yield or stop... the last time the truck had been sitting for half hour or so since a 5 to 60 mph run..... the first time the throttle had never been over 1/2 the entire day.
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Vince, sorry, I bought this pickup some months ago after selling trans am.. had this convertor in it then.. best I can find out the trans & tc were done about 50K ago..
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Scott, thanks... is disabling the "tests" something I could do with some tuning software or does computer need to sent off? I have been thinking about getting some program so I can at least view IATs, better A/F ratio readings, codes etc..
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thanks again... sorry for dumb questions.. I am old & slow.. and new to FI... and now in last year or so I have 3... an 07 duramax ec 4wd...for work.. the C3 with radix.. and the wife just bought an 04 PT cruiser turbo... I have lots to learn..
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