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1997 Ram 1500 surging

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Old Mar 10, 2024 | 04:43 PM
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Default 1997 Ram 1500 surging

we have a 1997 dodge ram 1500 v8 4wd. it runs fine when you first start it, but once it reaches "running temperature, the rpms start surging even in neutral and park until it starts sputtering and dies. if you’re driving the truck, it lunges forward.

just looking for ideas. We’ve replaced several sensors, new fuel pump, iac motor… feel like we’re just guessing at this point.
 
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Old Mar 11, 2024 | 08:08 AM
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From: Clayton MI
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Disconnect the front O2 sensor. See if the problem goes away.
 
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