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1991 4 Runner AC Blown fuse

Sent to Car Experts July 07 07:50 PM

I have a 1991 Toyota 4 Runner 6cyc. 5 speed. My AC will work for 2 to 3 minutes and then my 15amp fuse, behind the glove box, will blow. I put another fuse in and it works great for again 3 or 4 minutes and blows again. It seems to happen when the RPM's are higher. If I idle the engine it will run fine for a lot longer without blowing.

Any thoughts

Dan

 

Optional Information:
1991 Toyota 4 Runner 6 Cyc

Already Tried:
Just replacing the fuse

Customer (name blocked for privacy)
Status:  Closed   Value: $30
Answer
July 7 10:49 PM (2 hours and 59 minutes and 2 seconds later)
         
REPLIEDCheck Mark

Most likely the problem is in the clutch on the A/C compressor. For starters disconnect the wire to the clutch and see if the fuse blows. Make sure the wire is not chaffed by the clutch, especially where it enters the field.

The correct way would be to put a amp meter in series where you disconnect the a/c clutch wire and measure amp draw, should be about 5 or 6 amps. if higher replace the clutch

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toyotaman -- Toyota Master Diagnostic Technician -- 100% Positive Feedback on 70 Car Accepts
ASE Master with L1 Advanced Engine Performance. Toyota Master Diagnostic Technician, 32 yrs Toyota
Reply
July 8 12:03 AM (1 hour and 14 minutes and 17 seconds later)
         
Reply to toyotaman's Post: Toyotaman,
I have no problem with your answer so I will accept your advice. Question, If I try your sugestion and It doesn't work, do I have to pay another $30 to ask another question?
This is the first time I have used this. The info you gave me is a steel for $30. That's only basically $1 per year of your service. Thanks again for your help.

Dan
Customer (name blocked for privacy)
Answer
July 8 3:51 AM (3 hours and 48 minutes and 22 seconds later)
         
ACCEPTEDCheck Mark

Just relist the question to me and we will "getter done"

What ever it takes on my part to solve your problem.

Picture
toyotaman -- Toyota Master Diagnostic Technician -- 100% Positive Feedback on 70 Car Accepts
ASE Master with L1 Advanced Engine Performance. Toyota Master Diagnostic Technician, 32 yrs Toyota
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