Engine surges - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 1 Old 01-13-2007, 02:45 PM Thread Starter
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Engine surges

My engine is surging when under load at part throttle under 2k rpms. It cruises fine at low rpms and is smooth if underload at WOT under 2k rpms or once I get about 2k.

I've cleaned the MAF and IAC, and replaced the DPFE. The wires are good, and the plugs and coil pack have less than 20k miles on them. I unplugged the MAF, and it made no differece. No code is being thrown, which is why I'm having such a hard time figuring this one out.

Anyone have any ideas? Currently, I'm trying to decide whether to take it to a mechanic or just keep throwing parts at it.

*Before I cleaned the IAC and MAF, the engine had a very slight miss at idle. That has now cleared up.

2001 Mineral Gray V6 Mustang
1999 Hugger Orange Z28
13.2 @ 108.7 (KBDD SFCs & Cutout)

Last edited by Z28Colt; 01-13-2007 at 02:53 PM.
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