Question about 1992 Buick Regal

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I have a 1992 Buick regal that overheats at speeds of 40 mile n hour it has a new radiator, thermos stat, has been flushed an filled and bled have not changed the water pump when it overheats all of m

My car overheats at road speed of 40 miles n hour have had changed everything but the water pump all of my coolant when this happens goes into my overflow reservoir any ideas

Posted by Eric Niedjelski on

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Charles widle

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It is more than likely your water pump. Can you run it in park with the radiator cap off. The cap on the radiator not the overflow tank. When the temp opens the thermostat you should see flow if the pump is good no flow it is probably bad. If you don't see flow check the upper hose for temp and the lower hose. If the upper line is barely warm and the lower hose is significantly hotter, it is either water pump or thermostat, but since you replaced the thermostat I would be back to water pump. BTW you should use either a contact thermometer or an infrared to check hoses, although it was done by hand in the old days.

Posted on Apr 01, 2013

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5 Related Answers

Anonymous

  • 60 Answers

SOURCE: 1999 Buick Regal hesitation while driving

most likely it is not actually a misfire it is the overdrive/TCC solenoid kicking on and off, it is a common GM transmission issue

Posted on Nov 22, 2008

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Anonymous

  • 112 Answers

SOURCE: My Mom has a 98

only fill up the reservoir.

Posted on Jan 26, 2009

Anonymous

  • 18 Answers

SOURCE: Low coolant light, temp normal

you should fill the radiator and the reservoir to the cold line.. an yes check for leaks it has to be going down for a reason.

Posted on Jan 26, 2009

csmock132

Clint Smock

  • 4669 Answers

SOURCE: Low Coolant light flashing on 1996 Buick Regal 3.8

The low coolant sensor should be located in the passenger side radiator tank, You need to take it out and clean the sludge off of it for it to work right. Or you can just unplug it and forget about it, the light will go out and it won't cause any problems.

Posted on Mar 01, 2009

HansPP

Hans Pearson

  • 2510 Answers

SOURCE: had radiator flushed and coolant

You probably have a slight leak from the coolant filler cap and you have lost coolant by evaporation over the four months. Check the seal on the cap and replace it or the cap.

Posted on Mar 13, 2011

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