1990 Volkswagen Jetta Repair and Maintenance Costs
A guide to repairs, service, and maintenance costs for your 1990 Volkswagen Jetta
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1990 Volkswagen Jetta ProblemsHigh Mileage Automatic Transmissions May Have Shifting Problems
Shifting issues due to internal problems in high mileage automatic transmissions can be difficult to resolve without transmission replacement.
Electrical issues that are difficult to diagnose—and sometimes intermittent—are typically due to ground wiring issues. The most troublesome ground locations are under the battery or at the engine.
Reverse gear failures and noise in the manual transmission models are common.
1990 Volkswagen Jetta QuestionsI bought new valves and when I received them the exhaust valve stems where longer then the ones I pulled out. Is this an iassue? (1 answer)
When I ordered the valves the exhaust stems where longer then the stoke ones. Is this wrong or is this some kind of after market thing. I don't want to start if they will mess up my car. If the exhaust stems are bigger what does it mean?
(I know I put 1990, but it IS a 1985. It would not let me go past 1990.) When the car is cold, it has some issues turning on for some reason. I don't know what it could be, I'm no car specialist. It's not the battery because that was already replaced. Any ideas?
I have replaced all temp pickups and fan switch, thermostat (drilled 3mm holes X2), have replaced the reservoir tank.
While thermostat cap was off, checked impeller, used torch and screwdriver to c if impeller is broken or loose (100%). NOT loosing water, no oil in water, no vapor out of exhaust...