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01 Venture Blows only on high


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Alan M
New User

Mar 14, 2009, 3:13 PM

Post #1 of 4 (1237 views)
post icon 01 Venture Blows only on high Sign In

2001 Chevy Venture only blows on setting 4 and 5. No activity or noise on 1,2, or 3.
Alan


Tom Greenleaf
Ultimate Carjunky / Moderator
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Mar 14, 2009, 3:40 PM

Post #2 of 4 (1234 views)
Re: 01 Venture Blows only on high Sign In

Must be a moon stage as this is happening a lot lately. Without wild testing the guess is that the fan speed resistor has failed. The more usual failure is to leave you with HIGH speed only but there have been some that hung on to the upper two speeds at least for a while.

The part is called a resistor and most are located near the blower motor in the same housing and will/should have multiple wires plugged into it,

T



Alan M
New User

Mar 14, 2009, 5:50 PM

Post #3 of 4 (1229 views)
Re: 01 Venture Blows only on high Sign In

Thanks for the information. I will get that changed asap.
Alan


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Mar 15, 2009, 2:44 AM

Post #4 of 4 (1222 views)
Re: 01 Venture Blows only on high Sign In

Alan,

I see this and the wiper motor at the same time going on.

I suggest you check voltage output of your alternator. It should be regulated NOT to exceed about 14.5 volts DC while running.

Items will tolerate raised voltage but by about 17+ things will begin to fail. Two issues at the same time like you are having suggests one source of the trouble,

T







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