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1998 Chevrolet Astro - Page 3 Questions & Answers
Chevlolet astro van 09/98 P1631
hello sir how r u .. i have a problam on my car.GMC ENVOY . where r showing trobol code p1631.and this car is not working.. plz telll me how to solbe this problam.
Change out heater core
Heater cores are quite easy to change,what's hard is taking down the entire dash assembly,start by taking off the meters,lonce this is done keep working piece by piece of the entire dash until you get to the core, this would be behind the glove box you need lots of room and many long extentions and definately need screw-gun careful not to lose any screws good luck
I have a 98 Chevy
Yes, try ether. If still no combustion, consider timing chain/belt.
98 chev astro van wipers work once in a while.
With wiper switch on check voltage at wiper harness, if you have voltage then reverse test light at battery and probe wiper housing if test light light up with screw driver ground wiper housing to mounting bolt, if wiper work bad ground, of test light did not light up when testing wiper motor housing for ground and you did have voltage at wiper motor replace motor, it's not going to be a fuse, if fuse was bad wiper would not come on once in a while, now if no voltage any where replace wiper switch.Good luck and hope this was very helpful, thank you for using FixYa.
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