GM: Some things deserved

"KusabiSensei - Captain of the Toronto Maple Leafs" (kusabisensei) 06/22/2015 at 20:44 • Filed to: None

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This is a blower motor resistor pack. It is used to control the fan speeds on a 12VDC blower motor for an HVAC system. I replaced it less than 48 hours ago, had everything working, and then it has failed again. The method of failure is overheating.

And GM’s reputation of questionable quality continues... :)

If only EssExTee could be so grossly incandescent > KusabiSensei - Captain of the Toronto Maple Leafs 06/22/2015 at 20:47

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For parts like that it’s best pay that little bit more for OEM rather than a cheap Chinese copy.

G_Body_Man: Sponsored by the number 3 > KusabiSensei - Captain of the Toronto Maple Leafs 06/22/2015 at 20:54

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Too bad that in your case, it's more annoying than skill teaching.

Birddog > KusabiSensei - Captain of the Toronto Maple Leafs 06/22/2015 at 20:59

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Might have a bad ground somewhere.

crowmolly > KusabiSensei - Captain of the Toronto Maple Leafs 06/22/2015 at 21:02

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Did you buy a Delco replacement?

KusabiSensei - Captain of the Toronto Maple Leafs > If only EssExTee could be so grossly incandescent 06/22/2015 at 21:35

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I believe the AC Delco part is also outsourced to China (Not sure though), but if the replacement I get from Advance Auto also fails, then I will be off to the local Chevy dealer.

KusabiSensei - Captain of the Toronto Maple Leafs > crowmolly 06/22/2015 at 21:36

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AC Delco is the next stop if the replacement from Advance Auto exhibits the same failure. I’ve had good luck with the Chinese replacement parts in the past, so I’ll get another one from the shelf before going to GM.

2 screws to get the cover moved, two more to remove the resistor pack. It’s not hard. Just annoying to do.

KusabiSensei - Captain of the Toronto Maple Leafs > Birddog 06/22/2015 at 21:37

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It’s not ground, since the ground is selected through the resistor pack to generate the proper voltage for the 12VDC blower motor.

Besides, it was working just fine yesterday.

KusabiSensei - Captain of the Toronto Maple Leafs > G_Body_Man: Sponsored by the number 3 06/22/2015 at 21:39

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I also found the GM “Hey, Dealers! We have a crappy OEM part, so if one comes in with these failures and has a VIN in this range, here’s your warranty code to get us to pay for it” bulletin.

I’m way out by mileage. Coverage was extended to 10 years (got that), and 150K max miles (I’m at 306K)

boxrocket > KusabiSensei - Captain of the Toronto Maple Leafs 06/24/2015 at 10:08

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When my wife and I first started dating, she had an Alero she had bought from her parents. It had the same issue, but in the Alero and its stablemates (grand am, Malibu, century/regal), there was a design flaw that permitted moisture to get through the air intake at the base of the windshield down into the electrical in the front passenger footwell, where this resistor lives (and sucks to get to unless the car is upside down and the seat is removed). I helped her diagnose and replace the resistor, and all was well until the transmission decided it had had enough (at 101K miles, gm’s disposable appliance legacy continued!) and she traded it in on the Mazda6 she still daily drives.