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rpmdiag, Tech and Instructor
Category: GMC
Satisfied Customers: 6716
Experience:  Since 1975
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I have a 1993 Gmc Vandura 350 engine. it sat for a couple of

Customer Question

I have a 1993 Gmc Vandura 350 engine. it sat for a couple of months. when idrove it the ABS ligy comes on. the speedometer doesn.y work and thr transmission won<t shift up. Whats the problem. thanks Bert.
JA: How old is the transmission? Have you noticed any leaking?
Customer: No leaking transmission came with the van. 84000 miles
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: I believew the problem is in the ABS sensors. Could that be the case
JA: Anything else you think the mechanic should know?
Customer: Only that it has sat for a while and not run much and the battery was dead and had to be charged.
Submitted: 2 months ago.
Category: GMC
Expert:  rpmdiag replied 2 months ago.

Hi, welcome to Just Answer. I’m Ron and I’ll be helping you
Before we get started though, Please understand that I don't know
your skill level or tools you have to assist us. Also understand that
I can't see, smell, hear, or touch the vehicle either, so patience is
appreciated. JA is a great Q/A site, but it does NOT replace a
repair shop.
My goal is to make you happy and get a great rating in return for
my time. Sometimes I have to give you bad news that I know you
didn’t want to hear, so please don’t shoot the messenger.

First let's try a re-learn procedure and let me know what happens. See attachment.

Thanks, Ron