1993 Chevy Van losing coolant

Tiny
HARRY HEANEY
  • MEMBER
  • 1993 CHEVROLET VAN
  • V8
  • 2WD
  • AUTOMATIC
  • 163,000 MILES
193 chev van 6.2 diesel 16months ago the engine was totally rebuilt by a competent localmechanic. In about 4 days of running the coolant overflow blows out about a pint of coolant. The engine does not over heat and runs good. My mechanic chemically checked for cracked heads or head gasket problems. No co2 in coolant. Also checked for air leaks and found none. After running van I can hear gurgling in over flowtank and can see bubbles. We can't find problem. Can you please help
Friday, April 4th, 2008 AT 6:29 AM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Does it blow the coolant out or is it just about that much low? A chemical test of the cooling system isnt a 100% guarantee that there isnt an internal leak somewhere, especially if it doesnt overheat or leak on the ground. Does it ever run rough in the morning?
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Friday, April 4th, 2008 AT 9:44 AM
Tiny
HARRY HEANEY
  • MEMBER
  • 2 POSTS
It blows outthe overflow tube onto the garage floor I recently had to replace the glow plugs( wouldnt start) and it is getting hard to start again. It runs fine after it starts
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Friday, April 4th, 2008 AT 5:57 PM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Might want to try the glow plug relay. Does it have the correct rating on the rad cap? If too light (13lbs) may be blowing past it, might want to try a 16 lb 'r
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Saturday, April 5th, 2008 AT 8:00 AM

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