Question about Chevrolet Suburban

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What would cause the 10 amp crank fuse to melt on a 1997 suburban. I keep having to replace the ignition switch. I have replaced the ignition switched 4 times already.

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  • Judge Jones
    Judge Jones Jan 23, 2019

    It doesnt blow in the fuse box just melts it and after a while the ignition switch fails but after I replace it everything works fine for 6 months then it will melt the fuse again itbut doesnt pop it and I'm back to square 1

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  • 6 Answers

Check the amp draw when cranking. The starter motor may be at fault.

Posted on Jan 23, 2019

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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: Front heater fan control switch gets hot and melts. Why?

this is an easy one, the blower motor is drawing to much current, this happens as they wear out, replace the blower motor aNd all will be well in chevy land.

Posted on Feb 10, 2009

  • 1 Answer

SOURCE: 1996 toyota 4 runner 4x4 6cl key gets stuck in ignition, how do I replace ignition starter switch?

Just a thought , if the gear stick is not in park the key cannot be removed from the ignition I found out when I left the car in nuetral .

Posted on Feb 22, 2009

  • 6982 Answers

SOURCE: ignition switch fuse terminal is blowing red 40 amp fuse when i try to replace it

A fuse that is consistently blowing is telling you that there is a short in that system. Don't attempt to bridge it or use a larger amp fuse or you will have a major problem. You will need to start tracing wiring to destinations to find the short. If while moving harnesses around problem ceases to exist, look at nearby items where you are working and try to locate what was grounding. Sometimes people will stop if short disappears, leaving open the possibility of it happening again.
If you are not comfortable working with wiring, then leave it to professionals who do this every day. It's not really difficult but requires patience and a good bit of knowledge to do this right!

Posted on Apr 18, 2009

canbruce75
  • 1776 Answers

SOURCE: melted headlight switch socket, 1990 dodge truck

Due to the problems you have described, especially the discoloration on the switch terminals, I would look at the voltage regulator. It should be mounted against the firewall under the passenger side wiper area. Take the truck to an autoparts store and have them check the charging system output. Most parts stores will check the charging system output for free. See if the output is high or fluctuating. If it is high it would indicate a problem with the voltage regulator or alternator. I am curious as to what is obviously getting the switch hot enough to eventually do it in. The root of the problem as it were! lol Hope this helped and best wishes.

Posted on Aug 06, 2009

  • 1 Answer

SOURCE: 1997 GMC Jimmy SLS *

haveing the same problem 1997 jimmy doing the same exact thing i got wire digrams for it still no luck so if anyone know whats causeing please help

Posted on Sep 03, 2009

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1 Answer

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Fuse 38-the 30 amp fuse, the power feed for the run/crank relay- will be hot at all times. Fuses 9 and 11 will be hot in run or start. Check for power at the fuses. If the relay is not turning on and sending power to those fuses and to the ICM, and the ECM, (and to the injectors through fuse 16 - a 10 amp fuse), then work back to the ignition switch and the body control module. Wish I didn't have to say that, but yes, the BCM is between the ignition switch and the run/crank relay.
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Front heater fan control switch gets hot and melts. Why?


this is an easy one, the blower motor is drawing to much current, this happens as they wear out, replace the blower motor aNd all will be well in chevy land.

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