Having problems with your 1998 Ford Ranger ?

Truck calls when I give it gas

\015 Hello, I have a raggied old truck. 1998 Ford Ranger with 225k on it. Ran strong till the other day. Truck will start fine, idle fun after a bit it'll stall out though. But SOON as I touch the gas it dies. It has gas. Someone said head gasket someone else said no it'd overheat first. Someone says fuel pump. Someone said Alternator. Is this a pay and pray kinda job, or is this a put my new engine in it kinda thing? Just hate to take it off the road for a month or so while getting work on it.\015 Posted / edited by AnonymousUser on : 25-05-2020

Answers :

You may have a bad TPS or throttle position switch. You might be able to borrow a fuel pressure gauge and check the pressure at idle. You can disconnect the TPS leads and put the Ohmmeter leads into the TPS(Not the truck harness}. The Ohms should change smoothly as the TPS is opened.

The Crankshaft position sensor is suppose to change the voltage to the fuel pump to increase pressure for the higher RPM. If the fuel pressure does not increase the engine will lean out and die.

While a bad cylinder can stall an engine at idle, most can run at higher RPM a cylinder short.

Scanners- You need a "check light" for the cheaper scanners to work. But a good scanner bypasses the onboard computer and allows the Technician to directly question the same sensors through the cars' wiring. Such that the outside scanner can do much more than the onboard computer.

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Repair Help & Product Troubleshooting for 1998 Ford Ranger

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