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Old 07-02-2013, 01:01 AM   #1
RebeG
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98 Bravada Overheated, trouble starting

My 98 Bravada would overheat when running the a/c, if I stopped & shut it off it would start until cooled. Problem got worse that happened without running a/c. Noticed no pressure in radiator hose when hot, so replaced radiator cap and thermostat. Seemed to fix it, but now if I turn off car after driving for awhile, even tho it doesn't show hot, wont turn on until cooled. When my dad was helping me check things, he heard a buzzing/ sizzling noise from around carburetor area. Almost an electrical sound but also like air thru water. Like when as a kid using water to look for a hole in your bike tube? Also strangely, oil pressure guage goes to 0 when trying to start. but goes back to normal once started.
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Old 07-02-2013, 07:55 AM   #2
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Re: 98 Bravada Overheated, trouble starting

Quote:
Originally Posted by RebeG View Post
My 98 Bravada would overheat when running the a/c, if I stopped & shut it off it would start until cooled. Problem got worse that happened without running a/c. Noticed no pressure in radiator hose when hot, so replaced radiator cap and thermostat. Seemed to fix it, but now if I turn off car after driving for awhile, even tho it doesn't show hot, wont turn on until cooled. When my dad was helping me check things, he heard a buzzing/ sizzling noise from around carburetor area. Almost an electrical sound but also like air thru water. Like when as a kid using water to look for a hole in your bike tube? Also strangely, oil pressure guage goes to 0 when trying to start. but goes back to normal once started.
Does it fail to turn over/crank or just no start?
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Old 09-20-2013, 03:56 PM   #3
raistian77
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Re: 98 Bravada Overheated, trouble starting

Sounds like a intake manifold issue. The gaskets on that engine are notoriously bad for leaking, both inside and outside the manifold.
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