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Tim's Auto Repair
Tim's Auto Repair, Mechanic
Category: Transmissions
Satisfied Customers: 15480
Experience:  I have been rebuilding automatic transmissions for 25 years
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Why wont my 2008 chevy uplander shift into any of the gears?

Customer Question

Why wont my 2008 chevy uplander shift into any of the gears? I just changed the oil and spark plugs and wires. I had to take the exhaust loose at the manifold to change the plugs on the baack side of the motor, now that it is back together it wont shift into gear.
Submitted: 9 months ago.
Category: Transmissions
Expert:  Gary replied 9 months ago.

is the check engine light on ?

does the speedometer work ?

Customer: replied 9 months ago.
check engine light is on.
the speedometer stays at zero the tach works though
Customer: replied 9 months ago.
well the speedometer usually sets below zero but when I start it, it goes up to zero.
Expert:  Gary replied 9 months ago.

ok can you see if the VSS was unplugged by accident passenger side of the transmission wight where the axle connects into the transmission # ***** in this picture

since the speedometer does NOT work and it did before that is why its not shifting and either it was unplugged by accident or one of those 2 wires from the VSS was pulled out or damaged

Customer: replied 9 months ago.
I will have to jack it up and look at right now.
Expert:  Gary replied 9 months ago.

let me know its the only thing it can be if the speedometer does not work

Customer: replied 9 months ago.
I thought the speedometer only worked when the tires were moving?
Expert:  Gary replied 9 months ago.

it will only move that way yes

do you mean the transmission does not even have reverse ?

Customer: replied 9 months ago.
It does not do anything in reverse, drive, 1st 2nd or 3rd
Expert:  Gary replied 9 months ago.

ok can you be sure the shift cable is still connected to the transmission lever as seen as # ***** in this picture ?

sometimes they pop off and you just pop it back on with pliers

Customer: replied 9 months ago.
it is still connected.
Customer: replied 9 months ago.
when I leave it in park or neutral and check the transmission fluid it doesnt even suck it down
Expert:  Gary replied 9 months ago.

this is very odd if all you did what spark plugs and the cable is still connected

when in park the vehicle will NOT roll and lock on the parking lock ?

Customer: replied 9 months ago.
when I start the vehicle and put it in reverse the doors lock but the van does not move. It does not work in any gear at all.
Customer: replied 9 months ago.
Just give me my money back your answer or lack of answer was very unhelpful. Refund my money
Expert:  Tim's Auto Repair replied 9 months ago.

Hi, My name is ***** ***** for the delay.

I will do my best to assist you

did the transmission work before you done the work?

does park on the uplander so it wont move?

Expert:  Tim's Auto Repair replied 9 months ago.

is it full of fluid?

Customer: replied 9 months ago.
just give me my money back.