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98 Dodge Ram 1500: It spits and backfires at slow speeds..highway…

Customer Question
I have a '98 Dodge...
I have a '98 Dodge Ram 1500. It spits and backfires at slow speeds. On the highway its fine. I changed out the plugs and wires. What next?
Submitted: 8 years ago.Category: Dodge
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Answered in 21 minutes by:
6/11/2010
Dodge Mechanic: Amedee, Dodge Technician replied 8 years ago
Amedee
Amedee, Dodge Technician
Category: Dodge
Satisfied Customers: 28,327
Experience: ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
Verified
Greetings! You could have a bad fuel pump or a fuel delivery concern. I would rec to check fuel pressure. Fuel injected cars are very fuel pressure sensitive. Fuel pressure is very important and must be within specifications! But if the pressure is low, it does not mean the pump is bad. A plugged fuel filter, a pinched line, and low voltage at the pump can contribute to low fuel pressure. All three must be check before replacing the pump! You can get a fuel pressure gauge at a local auto parts store for cheap.
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Customer reply replied 8 years ago

How do I go about checking the pressure?

 

Dodge Mechanic: Amedee, Dodge Technician replied 8 years ago
Sorry for the delay!

It is really simple. Just hook up a fuel pressure gauge to the fuel rail and start the engine up and take a reading. It is as simple as that.
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