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1998 Dodge Caravan runs hot when A/C is on?

Tiny
SPEEDY2RUN
  • MEMBER
  • 1998 DODGE CARAVAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 13,000 MILES
O.K, my question is we have replaced the fan relay twice, and the ecu, the thermostat and the radiator and hose. The car is still running hot. We had it a diagnostic test ran on it and they said repalce the ECU, so we did. It was o.K. For 2 days and then did the same thing. The fan relay blew again! We wired the fans directly ans they are good. So where do we look next, besides a cliff to push it off of! Any help would be appreciated. Your site is wonderful! Thank you.
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Saturday, September 11th, 2010 AT 1:50 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi speedy2run, Welcome to 2carpros and TY for the donation

You probably have a short between the relay and the computer or the wiring from the relay to the fan motor

Did you bleed the cooling system after you replaced the Stat and the Rad? If not try bleeding it out-don't work get it block and pressure tested to confirm its not the headgasket, cracked head or block and ab intake leak
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Saturday, September 11th, 2010 AT 9:19 PM
Tiny
SPEEDY2RUN
  • MEMBER
  • 2 POSTS
Thank you for your response. We are on our way to get it checked out again. Hopefully right this time. Appreciate your time.
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Monday, September 13th, 2010 AT 2:48 PM

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