Question about 1988 Toyota Pickup

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If the alternator is plugged up it blows a fuse in fuse panel. Also turn signals

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  • vmike72 Mar 26, 2011

    It blows fuse with engine not running. As soon as the key is turned on, it blows. Also put a new alternator on. Thought that could have been the problem.

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Alternators have built-in voltage regulators. if the voltage regulator goes bad, it could over-volt, resulting in blown fuses or blowing the cap off the battery. you can use a voltometer/multitester to test the power at the battery. a running engine should put out about 14-15 volts (14.6 is quite average) at the battery terminals. if your voltage is higher, the alternator needs replaced.

Posted on Mar 26, 2011

  • Matthew Spark
    Matthew Spark Mar 26, 2011

    then you have a short somewhere, in either the acc on or turn signal circuit. you prolly need a new wiring harness, which aint cheap.

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Posted on Jan 02, 2017

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SOURCE: instr. panel and running lights fuse blow when headlights turn on

Do yourself a favor before taking to a dealer. Open the hood and find the fuse box. It will be on the firewall on the drivers side. Open it and fine the low beam relay. Finding it is easy. If you open your owners manual and look up relay in the index in the back of the manual there will be a listing of the relay locations. If you dont have the manual any more. A relay is a black or grey box. There are two diffrent types. The types look like a square and one looks like a rectangle. You are looking for the rectangle. The low beam relay is in the row of rectangle relays closest to the driver's side fender. Remove the two closest to the windshield. The one closest to the windshield is for high beam. Take that one and place it where the low beam is.If that fixes it go to an auto parts store and buy a replacement relay. Then try the lights. Let me know and good luck !

Posted on Mar 14, 2009

  • 30 Answers

SOURCE: i have 1998 k 1500

If i remember right those have tail light ciruit boards might be a short in that,

Posted on Jan 31, 2011

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