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Meister Tech
Meister Tech, Jeep Master Technician
Category: Jeep
Satisfied Customers: 422
Experience:  Factory Certified Jeep Master Technician Gold Level
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1990 Jeep wrangler sahara: warmed..bucks..stalls..tail pipe

Customer Question

1990 Jeep Wrangler Sahra drives great until its warmed up then it bucks, goes sometimes, stalls and back fires out the tail pipe and carburator
Submitted: 8 years ago.
Category: Jeep
Expert:  Meister Tech replied 8 years ago.
I have Factory Master Gold certification with Jeep

You could have a couple of issues.

1. timing is too advanced
2. carburetor is failing and needs a rebuild which is a common issue
3. Exhaust recirculation valve is sticking open at wrong time.
4. Fuel pump is failing
5. Ignition coil is failing under load.

Sebastian V.