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SUVs Chevrolet Blazer Chevy Blazer GMC Jimmy Electrical Problems
472 messages, Last post on Nov 19, 2009 at 4:18 PM
You are in the Chevrolet Blazer Forum. Your Hosts are steve_ & tidester
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Replying to: steve_ (Jun 20, 2009 8:05 am) |
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| my alarm goes off every 2 or 3 hours.and my inside light stays on inless the dome overide swicth is pussed in,any ideas? | |
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my drivers side window stopped working. checked fuses (ok). does not make any sound when button is depressed. Is window motor gone. How do I trouble shoot the problem? 
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2000 Chevy Blazer ZR2, power door locks, remote mirror controls & electric rear hatch release are not operating. Unable to open rear hatch/tailgate.
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Replying to: rw2 (Jul 24, 2009 8:41 am) problems you have with those is that they draw a lot of power to operate. That's why there is a relay also and not just a fuse. If I remove the power accesory fuse,those same things do not work at all. I hope it is the fuse because I don't know exactly where the relay is. From 1995 to 2004 they made a lot of small changes. Your owners manual should help you find the relay if you find the fuse is good. I'm crossing my fingers and hoping it is the fuse. I hope this works for you and good luck.
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Replying to: cardoc50 (Jul 27, 2009 4:45 am)
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Replying to: rw2 (Jul 27, 2009 1:01 pm) This was very common on the fan blower circuit used in GM back in the '60's through 80's. In the middle of a really hot summer day, the high speed would quit working on the a/c, but all the other speeds (different fuse) would work.
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Replying to: jlflemmons (Jul 27, 2009 3:00 pm) model Blazer? Not a 1960 Chrysler? Just glad I could be of help and thanks again.
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Replying to: cardoc50 (Jul 28, 2009 3:18 pm) The same issue can occur with automatic resetting circuit breakers, such as on some headlamp circuits. The breaker will trip, and reset when it cools down. Many years ago I was called down to Houston where a prototype industrial truck was undergoing environmental testing. Seems they were tripping the breakers for the AC unit cooling the instrument cab. Current monitoring showed they were only at 80% of the circuit breaker rating. But they were testing inside a heat chamber, and the combined effect lowered the capacity of the breaker. This was very common on GM back in 68 -76. Happened all the time when the Houston area temps went up into the 100 range. Folks would hop in their cars after work, start the car, flip the AC on high, and in about five minutes the high blower fuse would pop. Car would come to the shop and there would be nothing at all wrong with the blower. The high speed blower fuse was a separate inline fuse holder back behind the aircleaner on the firewall. We would routinely move the holder over to the low side of the AC drier and attach it there. Problem solved, the freon line would keep the fuse cool. This isn't just a car issue, this is common to all passive circuit protection devices. They are tripped by heat caused by electrical current. Automotive and industrial fuses are rated at 25C, as is the AGC30 that was typically used on the high speed blower circuit. More than one blower motor has been changed thinking it was the cause of the blown fuses.
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