Piston Slap: Cooling to the MAXX? (Part II)

>>>Insert Greenhouse Joke Here<<<

 

CJ writes:

My name's CJ I have a 04 (Malibu MAXX) with a 3.5 V6 and I have the same problem with the car running hot (as Part I) but here's the kicker :when the a/c is on the it runs normal, completely normal under both situations.  I'm thinking fan switch, but the radiator sounds plausible. What's your take and is there something in between all this that I'm forgetting?

Sajeev answers:

Oh Dex Cool, how you keep my coffers full of automotive queries!  I shall never go hungry as long as the metal forced to circulate you, oh Dex Cool, continue to roam this land.

Keep in mind there's two fans on this vehicle, one is a secondary blower (sucker?) to help when the A/C kicks on. (Remember kids, the A/C condenser is in front of the radiator.) Which begs the question, does your primary fan work?

Let's assume the primary fan works, otherwise the engine woulda overheated and warped itself by now.  Warped like an overheated I-6 Supra or 3.8L V6 Ford, that is. If the secondary fan is needed to assist the primary, all signs point to a clogged radiator. Just like Part I: the solution is a new radiator and a cooling system flush to get the gunk associated with Dex Cool out of the system.

Or maybe I'm just lazy, as recycling answers is a sweet way to make the nut.

And with that bizarre ending, off to the Best and Brightest.

 

Send your queries to sajeev@thetruthaboutcars.com. Spare no details and ask for a speedy resolution if you're in a hurry…but be realistic, and use your make/model specific forums instead of TTAC for more timely advice.

 

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