# 1990 gmc safari mini van

**URL:** <https://community.cartalk.com/t/1990-gmc-safari-mini-van/34577>\
**Category:** Maintenance/Repairs\
**Tags:** safari, gmc\
**Created:** [August 5, 2009, 9:17pm UTC](https://community.cartalk.com/t/1990-gmc-safari-mini-van/34577 "2009-08-05T21:17:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hellrazor6976](https://avatars.discourse-cdn.com/v4/letter/h/d07c76/32.png) [@hellrazor6976](https://community.cartalk.com/u/hellrazor6976)\
**Post date:** [August 5, 2009, 9:17pm UTC](https://community.cartalk.com/t/1990-gmc-safari-mini-van/34577/1 "2009-08-05T21:17:29Z")

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i have a 1990 gmc safari van when i frist start it up it sounds fine after awile of runninr it like driving 3 miles to wal-mart it starts making a knocking sound could it be the oil cooler clog i have replaced the oil pump oil pan frount mian seal on the timing cover or could it be the oil pan to small and not geting enoff oil i live in arizone and it get to 120 dergrees here please help

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**Author:** ![hellrazor6976](https://avatars.discourse-cdn.com/v4/letter/h/d07c76/32.png) [@hellrazor6976](https://community.cartalk.com/u/hellrazor6976)\
**Post date:** [August 5, 2009, 9:20pm UTC](https://community.cartalk.com/t/1990-gmc-safari-mini-van/34577/2 "2009-08-05T21:20:26Z")

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i forgot to tell you my oil presure is at 70 psi and when it starts geting hot lowers to 50 psi