Having problems with your 1999 GMC Jimmy ?

I have a 1999 jimmy with 115,000 miles and I,m hearing about the intake manifolds leaking antifreeze what concerns should i have with my jimmy and what type of antifreeze should I be using

Posted / edited by AnonymousUser on : 25-05-2020

Answers :

A leaking manifold could cost you a VERY expensive repair. I recommend getting it fixed as soon as you can. And with the antifreeze...seeing how it it a GM it should take DEX-COOL. But look under the hood and look for a white sticker and it should say "This vehicle takes DEX-COOL coolant. Do not mix with any other coolant" and if not the cap for the coolant should say so. If so, then obviously you need DEX-COOL or universal coolant. Universal will not harm anything, but I would use the manufacters reccommendations just on the safe side.
Check the ends/corners of the intake manifold, they are also bad about the fuel pressure regulators leaking, and the plastic fuel lines under the intake leaking fuel. Dexcool is the coolant used.
Repair Help & Product Troubleshooting for 1999 GMC Jimmy

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