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Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 17012
Experience:  15 years GM master tech
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Chevrolet Express 3500 LT: My chevy 3500 express van just came

Customer Question

My chevy 3500 express van just came out of the sop. the said they has to replace transmission, it had the code trans slipping. driven van over a hundred mile now to get the ecm/pcm back on line, but reader show Yellow light. I had put it in enhance mode and the code came up P0218. Do I need to take it back to the dealership?
Submitted: 2 years ago.
Category: Chevy
Customer: replied 2 years ago.
Van went in the shop because while traveling, fluid was coming out of the by pass tube, and did not shift at all
Expert:  Gary replied 2 years ago.
Welcome! My name is ***** ***** I will do my best to assist you with this problem.Ask me about added features such as phone contact anytime if you wish !
so is this transmission still slipping ?
and it keeps setting a code P0218 ?
that is the only code its setting ?
Customer: replied 2 years ago.
No slipping.
Only showed when I put the test in enhance mode.
No. wife took the van for smog. it passed.
I had put my reader just to check and it gave me the code. P0455 Evaporative Emission System Leak Detected. (gross leak/no flow)I don't know why these code are showing up now Po455 code no engine light on?
P0218 code(enhance mode) No light?
Expert:  Gary replied 2 years ago.
if you clear them will any codes reset ?
Customer: replied 2 years ago.
All code re-set before, no more slipping code only these two code. I could re-set again drive this week. test at end of week to see what happens
Expert:  Gary replied 2 years ago.
ok let me know
if codes reset tell me what the code numbers are setting
Customer: replied 2 years ago.
no problem
Expert:  Gary replied 2 years ago.
Customer: replied 2 years ago.
Update on codes. still needs more driving. but I also found what I think is the EVAP Service Port, with green cap. broken. It sit behind the throttle body. cant find the part at Auto Zone or if that what its call. I cant fid the other end that it connect to. more to come.
Expert:  Gary replied 2 years ago.
ok let me know
you will have to go to the dealer for the green evap service cap