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97' GV 3.3 cooling fan problem

Hello: i am having a problem with my 97' GV 3.3 cooling fans,problem is that while i'm in stop and go traffic as you may know engine gets hotter and the cooling fans come on as does mine,except that mine will stay on at the higher speed and will NOT shut off at times until i turn off the engine ans restart it again and they will come back on when the temp reaches a higher lever and then again will not shut off until i turn off the engine. i have replace the cooling fan relay which is up under the left side wheel well. thr coolant temp sensor is working properly. so can anyone tell me what may be causing this problem.

Thank You Earl

Reply to
Bentracer and Bentrider
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The first thing to check would be the coolant level in the overflow tank and the radiator.

Glenn Beasley Chrysler Tech

Reply to
maxpower

Glen: all of my fluid levels are topped off.

Reply to
Bentracer and Bentrider

The coolant temp sensor that controls the fan is in the coolant passage on the engine. If the thermostat is not opening all the way it will cause the fan to run longer . When the fans are on..... see if the air coming across the radiator is cool after they have been running for awhile, if so you may want to replace the thermostat.

Glenn Beasley Chrysler Tech

Reply to
maxpower

Glen: i forget to mention that i did replace the radiator and had to remove the fans,could it be possible that i have mistaken and plug the fans the wrong way? shouldn't the primary fan come on first and both at the same time when i'm not using the AC or defroster? should i switch the plugs on the fans? and would it be wise to change the thermostat and cooling temp sensor and also should i lubricate the shafts on each fan? Glen, Thank you very much for your input Earl

Reply to
Bentracer and Bentrider

They should only plug in one way, And I dont think you could get them mixed up. What was the reason why you replaced the radiator? And yes I would replace the thermostat. They are easy to do and cheap. Besides, that will more then likely take care of the problem

No need to lube shafts.

Glenn Beasley Chrysler Tech

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Reply to
maxpower

Glen: the radiator had a leak at two different places.

Thanks Earl

Reply to
Bentracer and Bentrider

A blown head gasket could cause combustion pressure to enter the cooling system and cause the temperature to rise and can cause the radiator to leak at the seams. If this were the problem you would be adding coolant allot and not seeing where it is going because it goes out the tailpipe. Assuming you don't have this problem I would replace the Thermostat.

Glenn Beasley Chrysler Tech

Reply to
maxpower

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