Question about 1997 Pontiac Grand Prix

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Need to replace radiator on 97 grand prix 3.8 GT. Lots of stuff in the way. How is this done?

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Remove all the stuff that's in the way it's a big job

Posted on Sep 23, 2009


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1 Answer

How to remove and replace the radiator on a 97 grand prix 3.8

Generally, you drain it, remove the hoses and trans lines, the cooling fan, and the 4 bolts that holds it in.

Jul 06, 2012 | 1997 Pontiac Grand Prix

1 Answer


Run water over the radiator while it is still running and see if the temprature goes down. Likely your radiator is stuffed up. A rod out done by a radiator shop will save a lot of money.

Jun 04, 2011 | 2004 Pontiac Grand Prix

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3.8 97 pontiac grand prix engine over heats when driving in stop and go traffic or slow traffic 30 miles per hour or less.I've checked radiator fans,both run, coolant is good .Replaced radiator...

The only next logical step is to have the radiator flushed and cleaned. Over time the radiator slowly builds up deposits along the fins and reduces water flow and heat dissapation. Sometimes Iv'e seen radiators get so full of deposits that only half the radiator is actually working. I have also seen this motor in other GM applications have computer problems and the cooling fans won't run when they should, but when this happens you start to see other funny stuff happening that gets hard to explain till a bad cumputer gets diagnosed. I assume everything else on the engine and car is working fine and your not noticing any other strange behavior from the engine, like hard to start sometimes and other times it starts fine, air conditioning fans work and then they quite and then work again for no apperent reason. If these type things are happening you might want to make sure your computer is working fine, and all the relays are working. Also make sure you do not have any abstructions in front of the radiator blocking air flow. there is also a sensor on top of the plennum that tells the fans to kick on, check this also.

Nov 17, 2010 | 1997 Pontiac Grand Prix

1 Answer

I'm having trouble replacing the upper radiator hose on my 97 grand prix gt because the front side clamp is hard to get to and I can't get it loose. I've tried a screwdriver and pliers but it is a...

If it's getting it off that's giving you the trouble, I would buy a new clamp and take some tin snips to the old one. A note of caution tho, putting it back on may be a job too as the Grand Prix is a bit cramped.

Apr 30, 2010 | 1997 Pontiac Grand Prix

1 Answer

Replacing radiator

i will come out of the top, remove the fan motor assemblys and remove the top plastic from the radiator support its a tight fit but it will come out the top

Mar 26, 2010 | 1997 Pontiac Grand Prix

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