Having problems with your 1990 Chevrolet Lumina APV ?

Not shifting from second to third

\015 I've got a 97 k1500. It will not shift from second to third. I have put new 1-2, 3-4 and 2-3 shift solenoids in the transmission but didn't help. Ive hooked it up on the tester and got codes p1860 and p1870. It shifts into first, second and reverse just fine and has never slipped. Any help would be appreciated.\015 Posted / edited by AnonymousUser on : 02-12-2019

Answers :

Hi, I also had this same problem. My van is 92-93 3.1. There was a leaking problem and the pressure was not enough so I changed the gaskets and came out ok. Hope it helps. I am not technician, just a Lumina lover.
Repair Help & Product Troubleshooting for 1990 Chevrolet Lumina APV

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