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1998 90hp Nissan Blows fuse

silvertrac51

New member
"I went out today to start the

"I went out today to start the Nissan and when I turned the key on nothing happened. Blew a fuse under the enging hood.
Put in another fuse, turn the key to on position and the fuse blew again, without engageing start position.
My son checked the wiring and seems to think it has something to do with the oil injection system, I think he said a green wire.
How does this happen when tirty days ago it was OK??? Been sitting a while.
Anyone have any idea as to head me in a direction??

Yhanks, CLewis"
 
"Wanted to update my post from

"Wanted to update my post from yesterday.
Found out the water pressure switch was open and was blowing the fuse. My son took the ground wire at the pressure switch loose and the engine cranked. Ground the ground wire and it blew the fuse.
My son took the water pressure plate and diaphram apart and checked the diaphram and everything looked OK. Put it all back together, repalced the fuse and the engine cranked.
Does anyone know exactly how this switch works and if it does not have pressure on it, why it would blow the fuse.
Any help would be appreciated.."
 
A fuse blows from a short. If

A fuse blows from a short. If you need help with understanding the function of the switch contact Nissan at 972-323-6003.
 
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