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95GTS · 03-02-2001, 07:07 PM

Whatever. Did they do a computer scan on it? How does your car run on the road? Does it miss out any, such as at a particular rpm range, or missing or "bucking around" during acceleration or so? If it does it could possibly be the fuel pump but I doubt it.

If it's the idle it's more like the TPS (Throttle Position Sensor) or IAC (Idle Air Control) or even a spark plug but more likely one of the other two. Take it back to them and have another mechanic work on it. They should run a computer scan which should tell them what's wrong with it. They can also hook up an oscilloscope machine and it can tell such things as spark plugs and wires and more engine detailed stuff. Have them do that first before they go screwing around and replacing a fuel pump that isn't bad.

I may be wrong but I highly doubt that it's the fuel pump. If they think it is then they can hook up a fuel pressure gauge and check it.

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1996 Mustang GTS

[This message has been edited by 96GTS (edited 03-02-2001).]

03-02-2001, 07:07 PM	#4
95GTS Git jiggy Join Date: Oct 1999 Location: MO USA Posts: 865	Whatever. Did they do a computer scan on it? How does your car run on the road? Does it miss out any, such as at a particular rpm range, or missing or "bucking around" during acceleration or so? If it does it could possibly be the fuel pump but I doubt it. If it's the idle it's more like the TPS (Throttle Position Sensor) or IAC (Idle Air Control) or even a spark plug but more likely one of the other two. Take it back to them and have another mechanic work on it. They should run a computer scan which should tell them what's wrong with it. They can also hook up an oscilloscope machine and it can tell such things as spark plugs and wires and more engine detailed stuff. Have them do that first before they go screwing around and replacing a fuel pump that isn't bad. I may be wrong but I highly doubt that it's the fuel pump. If they think it is then they can hook up a fuel pressure gauge and check it. ------------------ 1996 Mustang GTS [This message has been edited by 96GTS (edited 03-02-2001).]