SOURCE: trans. shifting problem
try a fluid and filter change and also a modulator valve and make sure you have vaccume going too it
SOURCE: my 1993 lumina is having shifting problems.
Check for a vacuum leak to the transmission modulator. the modulator is on the trans abd has a vacuum hose on it.
SOURCE: transmission only has 2nd and 3rd gears after
Check the modulator on the trany, make sure it is not shorting out, check the connections on solenoid.
SOURCE: my 2003 is having a
There is no such thing as a "cold start valve" but there is an IAC motor that adjusts the idle speed, and they can fail/stick and not turn on the check enging light. There are a couple of things that can cause what you are describing so I wouldn't just start throwing parts at it. You really need to have a shop with a scan tool have a look at it.
SOURCE: 700r4 transmission won't shift out of low gear and
Take it to a shop where they can change the transmission fluid and filter and also have them do a good flush of the transmission with a special solvent they use. If this doesn't help it may be time for a rebuilt transmission.
Testimonial: "Thank you, I just bought this truck got a good deal knowing it may need a transmission. Any tricks you can think of please help."
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