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1993 Questions for all other cars fuse blowing ECM unit

Tiny
CAPT JOHN
  • MEMBER
  • 1993 ALL OTHER MAKES ALL OTHER MODELS
Electrical problem
1993 Questions for all other cars V8 Two Wheel Drive 27,000 miles

i have a 1993 winnebago rv it keeps blowing the 10amp fuse to my fluel pumpthe fuse says ecm
i had it towed home but a new fuse in it now it is working not sure what to do thanks capt john
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Sunday, November 1st, 2009 AT 12:23 AM

4 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there, the fuel pump may be failing and as it loads up the fuse is blowing, this can be tested wit an amp meter to test the current draw on that circuit.

Mark (mhpautos)
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Wednesday, November 4th, 2009 AT 11:25 PM
Tiny
CAPT JOHN
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Hi mark thanks for the reply my 1993 rv 454 chevy
was jacked up on the left side front and back for inspection they took off the tires and checked the brakes then I drove it home on the way I must have got low on fuel and the ecm fuse blow I but a new fuse in and made it to the gas station then leaving the gas station about 1, ooo feet it blow the fuse again I then keep installing fuses and as soon as I turned on the key it would blow I looked at the wires from the pump all the way to a plug by the motor I un plug the wires and but in a new fuse as soon as I turned on the ket to start the motor the fuse would blow so I had it towed from behind to my house about 10 miles after getting it home the next day I but in a fuse and now it is running great im afrid to go on the road for I dont wont to be towed again could my ecm be going bad thanks capt john
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Thursday, November 5th, 2009 AT 11:22 PM
Tiny
MHPAUTOS
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Hi there,

This is a bit of a mystery, I would first run a scan and check for any unresolved fault codes, as the fuse blew with the pump disconnected it won't be the pump, I would also have a good look at the loom and see if it has been rubbing and chaffed through any where, also check that all the plug connections are clean & tight, see how you go.

Mark (mhpautos)
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Thursday, November 5th, 2009 AT 11:54 PM
Tiny
CAPT JOHN
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Himark thanks for getting back to me I will be working on the rv this weekend and hope to find the problum ill get back to you thanks for the help have a great day capt john southern maryland
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Friday, November 6th, 2009 AT 1:21 AM

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