Front and rear blower motor issues! HELP!

Front and rear blower motor issues! HELP!

Postby KC10Chief [OP] » November 20th 2011, 8:04am

On my 1997 Safari van, it doesn't seem like the front blower motor blows very hard. I can tell that the speed changes with each click of the knob. It just doesn't blow hard in high. Is it worn out?

The rear fan is kind of rattling. It's noisy. Is this common? Where is it even at? I tried a search, but didn't come up with much. It's pretty dang cold here in Alaska right now. It takes a while for the van to warm up.
Matt
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Re: Front and rear blower motor issues! HELP!

Postby chevymaher » November 20th 2011, 2:25pm

The rear one rattling some thing wrong.maybe a bearing.I dont have one.But I believe it on the drivers side under the interior panel under the rear window behind the wheel well.
The front blower motor it is subjective how much they blow.Mine works perfectly and it not doing a whole lot.Lumpy has the same complaint with his air conditioning.
Only thing I see that can help is removing the water control valve.It is restrictive when it is working correctly.I remove them for people locally here.It will not increase the air flow but it does increase the temp of the air coming out.In short the heater puts out more BTUs of heat energy.
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Re: Front and rear blower motor issues! HELP!

Postby Phantom » November 20th 2011, 2:35pm

KC10Chief wrote:On my 1997 Safari van, it doesn't seem like the front blower motor blows very hard. I can tell that the speed changes with each click of the knob. It just doesn't blow hard in high. Is it worn out?

The rear fan is kind of rattling. It's noisy. Is this common? Where is it even at? I tried a search, but didn't come up with much. It's pretty dang cold here in Alaska right now. It takes a while for the van to warm up.


You may have a vacuum line problem or solenoid not operating properly to change to air flow direction , or maybe blower is dying , or blade slipping and not spinning as fast as it should

Try here for the heater location , I think it is the same for Gen2 behind the driver seat
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Re: Front and rear blower motor issues! HELP!

Postby RECox286 » November 20th 2011, 3:59pm

Front blower issue:

Does your truck have a cabin air filter in the ductwork ? That could be the air flow problem. Is the air diverter actually working ?

Is the fan motor running at all speeds ? Does the hose to the heater feel uncomfortably warm to the touch. May need a new T-stat./ pressure cap ?

Try a blank off plate in front of the radiator when it is really cold out. Hey, it's Alaska ! When would it not be cold out ???

Bob
Start a fire for a man and he will be warm for a day.
Set a man on fire and he will be warm the rest of his life.

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Re: Front and rear blower motor issues! HELP!

Postby Phantom » November 20th 2011, 4:26pm

I once tried to confirm if astro had a cabin filter , and 2 dealerships said there was no cabin filter on astro ,
Have heard several times the water control valve chev mentioned , has solved the problem for several people ,
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Re: Front and rear blower motor issues! HELP!

Postby Leeann_93 » November 20th 2011, 5:12pm

The blower is right behind the driver's seat. The panel just pulls out at the back - it's those stupid metal clips on plastic posts, so be careful. One screw at the front as it wraps around the pillar behind the driver's door - you have to unscrew that and thread the seat belt through the slit, then it pulls right off.

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It's a sealed unit, so you probably have a bearing issue.

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You should be able to reach that one screw without removing the heater core, but I included the pic just to show it to you a bit better.
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Re: Front and rear blower motor issues! HELP!

Postby KC10Chief [OP] » November 20th 2011, 9:43pm

Thanks! You guys are awesome. The fan sounds like it is right behind the drivers seat somewhere. They look pretty cheap at the auto parts stores. About $25. I'll just throw a new one in there. Also, I hate those metal clips on plastic posts! Who thought that was a good idea? :?
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Re: Front and rear blower motor issues! HELP!

Postby Phantom » November 20th 2011, 10:28pm

KC10Chief wrote: Also, I hate those metal clips on plastic posts! Who thought that was a good idea? :?

Some bean counter at a desk looking to get a raise in salary ... :lol:
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Re: Front and rear blower motor issues! HELP!

Postby Leeann_93 » November 20th 2011, 10:35pm

It's faster for assembly and easier in manufacturing. Isn't that great?
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Re: Front and rear blower motor issues! HELP!

Postby 104mariner » November 28th 2011, 5:57pm

Just replaced heat/ac blower in my 2002 Astro. Sometimes it was noisy - other times wouldn't turn on. Was "easy" 1.5 hr. project. Accessable from under the hood. Bought new motor ($29 at Auto Zone- other discount parts outfit wanted $79 !) Auto Zone will also give you two page instruction which was mainly correct. You must first remove washer and radiator over flow canistors (mine was single unit) Lift up on plastic studs to release, discontect washer hose, pump connector, and radiator overflow hose. Remove support bracket for two heater hoses to get extra room to work old motor out - you do not have to disconnect them. Once cannisters are removed you will cut plastic shroud on marked lines to gain access to motor. There is actually a molded note on plastic that says " cut on lines to access motor." Use a stiff razor knife. There is also a small screw on middle left side that will hold plastic. That hex screw is 7/32" as will be screws that hold motor (4) ea. Remove blower electrical plug. You will notice a small rubber hose that apparently cools blower. It is hooked to blower and lower housing. My replacement blower (VDO brand) did not have male tube fitting but just a hole that hose went into. Don't force hose too far inside as it might interfere with motor. After replacing motor I replaced cut out plastic, secured small screw and ran a bead of silicone adhesive around cut. Replaced everything else and I now enjoy a powerful blower.I have not replaced rear blower but I think it is easier than front.
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