4L60e LT1 Issue
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4L60e LT1 Issue So my girls 93' LT1 camaro is having a funky tranny issue..
Going down the road crusing about 60 in OD you can floor it and she wont down shift. same goes with 3rd gear
Going down the road crusing about 60 in OD you can floor it and she wont down shift. same goes with 3rd gear
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From: Ann Arbor, MI
The shifts are completely controlled by the PCM. If the PCM says SHIFT, the trans will shift unless it is completely broken.
My guess is that that the PCM is not commanding a shift because of a sensor problem. Make sure your throttle sensor, speed sensor, MAP and MAF(?) are working properly. Have the PCM scanned for codes.
My guess is that that the PCM is not commanding a shift because of a sensor problem. Make sure your throttle sensor, speed sensor, MAP and MAF(?) are working properly. Have the PCM scanned for codes.
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From: Moore, Oklahoma
The shifts are completely controlled by the PCM. If the PCM says SHIFT, the trans will shift unless it is completely broken.
My guess is that that the PCM is not commanding a shift because of a sensor problem. Make sure your throttle sensor, speed sensor, MAP and MAF(?) are working properly. Have the PCM scanned for codes.
My guess is that that the PCM is not commanding a shift because of a sensor problem. Make sure your throttle sensor, speed sensor, MAP and MAF(?) are working properly. Have the PCM scanned for codes.
The car runs really rich, almost smells like as if it has gas running through the exhaust, i thought the EVAP was undone again but it wasnt, it just runs crappy and im slowly thinking either the person who owned it before us molested the car so bad that they either "Tuned" it and it went wrong or the PCM is failing.
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See the trans was runnning fine up untill about a week ago. i dont even know where to start with the motor, both head gaskets have been replaced and the only mods i have seen done so far is the fans have been cut, got to hard wire to a switch
and the exhaust had the cats cut with flowmaster dumped after the axel Moderator
Joined: Aug 2010
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From: Ann Arbor, MI
You might start by scanning the PCM for codes; usually free at big auto stores.
You didn't mention if the MIL (Check engine light) is on; if it is, correct that first.
If tuned, either the MIL was disabled, or the code was completely disabled. I suspect there are codes.
You didn't mention if the MIL (Check engine light) is on; if it is, correct that first.
If tuned, either the MIL was disabled, or the code was completely disabled. I suspect there are codes.
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I tried to have to codes read but both me and 3 other people couldnt get the codes pulled the Check Engine light is on. this car like i said was raped by the previous owner :/
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A 93 is a 4l60/700r4 and if not electronically shifted. Check you tv cable is connected to the throttle body first and re-ajust it. This is done by pushing down the tab on the cable then pushing the center housing on the cable into the cable as far as it will go. Then release button tab and get in car and push throttle (car not running of course) as far as hard as you can you should hear a click sound of sorts, Then try driving it again. The 4l60e did not debut in the camaro till 1994 only trucks had it in 93
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