oil gage up to 80!,then back
#17
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Year: 2000 and 1998
Model: Cherokee
Engine: 4.0
yeah, it sends 12v to the small start wire. when i jump with a screwdriver i do exactly the same thing but more direct. a button would skip the screwdriver messing. you gotta understand the circuit. ive been fighting this and i know what ive had to do to get home!
im replacing the starter again today if i can get a NEW one and hope to end this njghtmare!
#18
No, I don't lick fish.
I understand the circuit completely. I also understand that bypassing a relay with a starter button is a recipe for a melt down... unless you're going to wire a relay inline with the new starter circuit. Think for a second man, that's 500-800 amps going through that wire when using the starter.
#19
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Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
The small wire carries power to the solenoid, not the starter motor. This means there's an issue with a relay, a fuse, the NSS, or your ignition switch.
Have you checked the above?
Have you checked the above?
#20
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Year: 2000 and 1998
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I understand the circuit completely. I also understand that bypassing a relay with a starter button is a recipe for a melt down... unless you're going to wire a relay inline with the new starter circuit. Think for a second man, that's 500-800 amps going through that wire when using the starter.
no damage , just got started in a pinch ya gotta know a workaround to get home.
i learned about the screwdriver here on the forum when i came here for jeep training 3 mo ago!!
ive only been working on cars since 1958
Last edited by nujeepguy; 01-16-2017 at 01:51 PM.
#21
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Year: 2000 and 1998
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Engine: 4.0
I understand the circuit completely. I also understand that bypassing a relay with a starter button is a recipe for a melt down... unless you're going to wire a relay inline with the new starter circuit. Think for a second man, that's 500-800 amps going through that wire when using the starter.
no damage , just got started in a pinch ya gotta know a workaround to get home.
i learned about the screwdriver here on the forum when i came here for jeep training 3 mo ago!!
ive only been working on cars since 1958
#22
No, I don't lick fish.
the relay is a switch. it does not handle 500 amps!! it has a 30 amp fuse in series.. nothing in the system does. it goes to the start wire, the small one thay pulls in the solenoid. i got a click from the relay but no crank. when i jumped it direct it would kick in. it did exactly what the relay did but more direct.
no damage , just got started in a pinch ya gotta know a workaround to get home.
i learned about the screwdriver here on the forum when i came here for jeep training 3 mo ago!!
ive only been working on cars since 1958
no damage , just got started in a pinch ya gotta know a workaround to get home.
i learned about the screwdriver here on the forum when i came here for jeep training 3 mo ago!!
ive only been working on cars since 1958
Whole point of this entire thing is, why not just FIX THE PROBLEM instead of jerry-rigging a starter button and bypassing the starter relay.
As Salad mentioned above, there are several issues that could cause your problem. How 'bout checking those instead of trying to reinvent the wheel? For someone who's been working on cars for so long, you should know better.
#23
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Year: 2000 and 1998
Model: Cherokee
Engine: 4.0
Very well aware of the screwdriver trick to bypass a starter.
Whole point of this entire thing is, why not just FIX THE PROBLEM instead of jerry-rigging a starter button and bypassing the starter relay.
As Salad mentioned above, there are several issues that could cause your problem. How 'bout checking those instead of trying to reinvent the wheel? For someone who's been working on cars for so long, you should know better.
Whole point of this entire thing is, why not just FIX THE PROBLEM instead of jerry-rigging a starter button and bypassing the starter relay.
As Salad mentioned above, there are several issues that could cause your problem. How 'bout checking those instead of trying to reinvent the wheel? For someone who's been working on cars for so long, you should know better.
still curious about 80 pounds oil, never came back and all other gages ok. sender has 3 wires? they look good. got conn off without breaking it..
btw,its interesting how guys get bent out of shape with the mention of a small electrical mod in forums like hummer and jeep where 90 % of talk is on major mechanical mods ,wheels,tires, lift kits, front leveling, all of which take the truck out of mfgrs spec for safe driving!! believe me my 98 was home brew lifted,hugh tires and a cracked frame at the steering box.i put stock tires on it but it was still not stable on the road. its my backyard spare never on the road.
saving the 129000 4.0 as possible use if i get a head crack.
i dont make major mechanical mod,,no more,,,a jumper wire, yeah if needed!!
Last edited by nujeepguy; 01-16-2017 at 03:47 PM.
#24
No, I don't lick fish.
Oil pressure sending units are fairly cheap. If it happens again, you can try swapping in another. Before going that route though, I would check for breaks in the wire insulation as well as all your grounds... a ground refresh regardless.
As far as your electrical mod goes... the way you had presented it was a permanent modification rather than a temporary fix until you could get the parts to actually fix it. My apologies.
As far as your electrical mod goes... the way you had presented it was a permanent modification rather than a temporary fix until you could get the parts to actually fix it. My apologies.