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post #1 of 4 (permalink) Old 12-27-10, 07:38 AM Thread Starter
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Coolant Loss/ Overheat Question

Have a 98 XLT 5.0 with 168K. Last couple months noticed coolant loss with no visible leaks and light smell of burned coolant. Nothing in oil. Nothing from exhaust either. Would top off radiator and vehicle would run great.

Driving home from work temp gauge pegged to hot with check gauge light on.

Pulled over and smelled strong odor of burned coolant. Overflow empty. Let cool, opened radiator and filled with water. Started vehicle, temp gauge was still pegged and moved slightly off when idled for 5 minutes. Drove vehicle for 5 minutes in neighborhood nothing changed. Temp gauge still pegged. Let cool, noticed smell, empty overflow and radiator.

Vehicle never showed signs of complete overheat.

What can be done to troubleshoot where coolant loss is coming from as well as if headgasket needs replacement? thanks for your help. Roger
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post #2 of 4 (permalink) Old 12-27-10, 09:13 AM
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Re: Coolant Loss/ Overheat Question

A pressure test of cooling system should show any external leaks and a sniff test ( block test ) will tell you if head / gasket gone .

P.s
no sign of water / coolant inside on carpets ? which would suggest heater matrix leaking .
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post #3 of 4 (permalink) Old 12-28-10, 05:14 PM Thread Starter
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Re: Coolant Loss/ Overheat Question

Great thx....Approx how much should a shop charge for the sniff and pressure tests?
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post #4 of 4 (permalink) Old 12-28-10, 08:43 PM
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Re: Coolant Loss/ Overheat Question

The prices are different depending on where you live. Call a couple of shops and ask what they charge for that.

Bert
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