Wimpy blower motor (1992 SSE) - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-02-2003, 10:14 AM   #1
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Default Wimpy blower motor (1992 SSE)

My blower motor works but is not that strong. Is this just typical of these cars? I was so used to my old car with it'* "max" setting that the one in my bonnie feels weak. The blower certainly sounds as though it is working properly it just does not seem to push air through the vents as well as previous cars I've owned. I do not have another bonnie to compare it to so that'* why I'm asking you guys.
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Old 06-02-2003, 11:03 AM   #2
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Sounds like a clogged core to me. Made a big difference when Jseabert and I cleaned ours. There'* a post around here somewhere.......clean that sucker. Should take about an hour with some carb cleaner and a garden hose (and a wet/dry vac for the inside footwells just in case).

I gained about 10% flow, Josh gained about 30%.
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Old 06-02-2003, 03:35 PM   #3
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Quote:
Originally Posted by willwren
Sounds like a clogged core to me
Ayup; second that. In particular, if the evaporator springs a leak, it'll get the outside all oily, which traps dirt, which clogs everything up for both heating and A/C.
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Old 06-02-2003, 08:41 PM   #4
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Third IT!
I can give you step by step instructions too, if you wish.
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Old 06-02-2003, 08:51 PM   #5
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Yup. It was the Rat'* procedure we used. Works like a charm. Al, do we have that in Techinfo on our site yet? If not, send it to me. I'll get it posted.
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Old 06-03-2003, 12:03 AM   #6
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Default Evap Cleaning 101

Evap Cleaning 101

Step 1
Remove the Engine Compartment'* Relay Cover. Now remove the hold down bolts that hold the Relay Rail to the Firewall. Next, adjust the Relay Rail out of your way so you can access the Blower Resistor that is situated on the top of the Heater Box. Remove the three 7mm bolts, then pull out the Resistor Relay & disconnect the connector.

Step 2
Taking a can of non-clorinated Brake Clean, spray the inside of the heater box aiming the nozzle towards the Evap Core. Spray liberally, using the entire can if need be.

Step 3
Now taking a clean shop rag or cloth, wipe down the Evap Core as best as you can. Next, taking a garden hose with a nozzle, wash off all the brake clean. Be careful not to allow too much water into the Heater Box, as this will cause it to overflow into the Interior Compartment & thus soak your carpet!

Step 4
Allow the water to drain out the Drainage Hole in the bottom of the Heater Box for about 30 minutes to a Hour. While it is draining, re-install all components in reverse of the tear down proceedure above. WARNING! Do NOT turn on the Interior Fan Motor until ALL the water has been drained from the Heater Box! FAILURE to do this will cause you to get very, very wet as the remaining water will be blown through the vents into your face & lap causing great ambarasment & laughter from your friends!
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Old 06-03-2003, 12:47 AM   #7
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Hehe good Warning! thats priceless
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Old 06-03-2003, 01:27 AM   #8
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Ummmm....that warning would be best taken to heart. I dunnit. Got my carpet DAMN clean, and the smell was gone in a couple days. Good thing Jseabert'* Mom has a Bissell carpet steamer with the upholstery attachment. We did it to BOTH of our cars that day!

We did mine by ASSident, then said what the hell on his. His carpet was dirty anyway.
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Old 06-03-2003, 02:35 AM   #9
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I too have done it, hence the warning in the first place!
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Old 06-03-2003, 02:38 AM   #10
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And to think I felt like so much of an IDIOT. YOU were the IDIOT before ME!
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