1987 Jeep Wrangler XJ - The Invisible Gremlins
Fuel Pump
So it isn't really a sensor, nor does the computer rely on it for input as to how the engine is running. What it does - and does well - is provide the high-zoot, fuel-injected engine with the proper volume and pressure of fuel that is required to run. It is located in the fuel tank (go figure), and a common misconception on the fuel pump is that it is either all or nothing. Well, consider that myth busted. The fact of the matter is that a non-H.O. engine needs to see 35-40 psi, while an H.O. motor needs to see from 40-50 psi of pressure at the fuel rail. Consult your factory service manual for the specifics for your year, but suffice to say if you are running 5-10 or more psi under the specified value, the Jeep will buck, spit, sputter, and generally run horribly. Attach a fuel-pressure gauge to the port on the fuel rail and check pressure at idle, under load, and full throttle against specifications to make sure that's not the problem. View Related Article
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Jeep Patriot Research
Our comprehensive information will allow you to compare the new Jeep Patriot and review specs, photos and more. The 2010 Patriot comes with a L4 standard engine and has a manufacturer suggested retail price of $22,740.00. It has drivers side crash test ratings of 4 stars and passengers side crash test ratings of 5 stars. Other similar vehicles are the Jeep Wrangler and the Jeep Liberty.
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