I have the same problem. I have worked out that it is the cars immobilizer {it usually happens when its hot-external temp}. Haven't solved the problem yet but would appreciate any feedback. I have put the immobizer in heat proof material and has solved problem - 85%. An electricial has told me that something is effected by the heat on the immobilzer console but hasn't managed to mend.
Can i by-pass the immobilizer?
Peter
SOURCE: 1999 Jeep wrangler runs rough
Check the gas, could be water in it or drive the car with a fuel
pressure tester connected to it and watch to see if you lose pressure.
Normal pressure while driving is about 30 to 40 psi
SOURCE: my immobilizer will not disarm
when you say "the immobilizer will not go off" that mean you can still drive the car or not,when the immobilizer goes on you can start the car but will not run, so what do you need a spear key for .you may need the valet key, is a gray key .
I am professional car alarm and remote start installer so I deal with this kind of problems if you have any question email me
[email protected]
SOURCE: interference to RKE, immobilizer activates, cannot disarm immobil
Car Alarms: 1998 Grand Cherokee RKE, rke system, jeep dealership
Good luck let me know !!
SOURCE: 1999 jeep wrangler very little heat
YOUR RADIATOR HAS TRAPPED AIR IN IT AND NEEDS T BE "BURPED".
SOURCE: i have a 1999 Jeep Wrangler and the heater fan
If you bypass the resistor pack and connect the motor directly to the fused 12v supply then the fan should run at maximum speed. If so, it's the resistor pack that's blown: a very common fault on a huge number of makes and models.
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The first person to offer an immobilizer bypass harness for sale will be rich by next year!!!
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