engine alarm???

[phatdaddy]

do you have a water pressure & temp gauge? if so, disconnect the sending unit for the horn and see if problem goes away. some have sensors on both heads, some on one.

[cterrebonne]

I would test as ferm suggest. find the test procedure on the diode. it is cheaper than possibly buying that expensive warning horn and it not being the issue. i just checked the price p/n 583891 $79.13 wow that's a lot.

[THEFERMANATOR]

If the horn is going off without a loss of power, then it is most likely the fuel restriction sensor or a bad warning horn tripping it. It doesn't take much to set the horn off on the 3 wire ones, so that is why it is crucial that the blocking diode is in and working.

[MIKETTURBO]

thnx guys,I gonna look onto the diode as ferm suggested.The book says fuel restriction will sound at full or near full throttle.I know (ya never know) .

[THEFERMANATOR]

Originally Posted by MIKETTURBO

thnx guys,I gonna look onto the diode as ferm suggested.The book says fuel restriction will sound at full or near full throttle.I know (ya never know) .

When there is a fuel restriction, yes it will only sound under hard load. When the sensor fails though it can trip whenever. Also a small even to smal to see spot in teh insulation missing from any of the wires for the warning horn can trip it as well.

[reelapeelin]

Originally Posted by THEFERMANATOR

Also a small even to smal to see spot in teh insulation missing from any of the wires for the warning horn can trip it as well.

That sounds like nasty business to run down...how best to find this little gremlin?...sounds like something that'd happen to me...