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1993 Chevrolet Camaro 3.4L Line Pressure High
Posted to GM Transmission on 4/9/2010 10 Replies

hello all. I have a 4L60 unit here that will not upshift. Line pressure is very high (125-150). (Spec is approx (75-90). Sent pump to trans shop, they said pressure regulator valve in pump "seems fine". TV cable not sticking, when pulled at idle, pressure drop...

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car Vehicle Data

1993 Chevrolet Camaro

VIN 2G1FP22SXP
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedLine Pressure High
ConditionsLate/No Upshift
Message Closed

car Vehicle Data

1993 Chevrolet Camaro

VIN 2G1FP22SXP
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedLine Pressure High
ConditionsLate/No Upshift