Engine overheating when I on A/C

1994 CHEVROLET CAPRICE
480,000 MILES • V8 • 2WD • AUTOMATIC
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MNAEEMCH
  • MEMBER
  • 8 POSTS
Dear Sir,
I have Caprice 1994, 4.3L. I overall engine on August, 2010 and know when I put A/C it become overheating and boiling the water and come out. I have put Thermostat valve, New Delphi A/C compressor, Accumulator with new (gas) pipes new radiator fans working properly.

BR
mnaeem@ebttikar.com
May 24, 2011 at 1:31 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
possibly the radiator is clogged a bit, either the fins outside, or the core inside. a radiator shop can tell pretty quickly and price a new one for you
what was overhauled on the engine? was the block boiled out?
May 24, 2011 at 3:31 AM
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MNAEEMCH
  • MEMBER
  • 8 POSTS
I already replace new radiator…

BR
May 24, 2011 at 5:20 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
waterpump replaced yet? tell me all new parts so wr don't dance longer than we have to!
May 24, 2011 at 8:25 AM
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MNAEEMCH
  • MEMBER
  • 8 POSTS
Yes, before 1 year I already changed.
Thanks for your cooperation, which is highly appreciated.
BR
May 24, 2011 at 8:59 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
Condidtion of engine block? Was it sent to a machine shop during the rebuild?
May 25, 2011 at 1:13 AM
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