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V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters
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Old 10-15-2013, 06:13 PM   #1
94EatonStang
 
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Join Date: Oct 2013
Vehicle: 94 Mustang 3.8 Convertible
Location: Indiana
Posts: 2
Christopher Brown
Exclamation Car starts rough and gurgles

1.) Car revs up to 2000 RPMS when its started and idles at 1200 for about 30 seconds then drops to ~900 and you can hear a slight knock before the car is fully warmed up and sometimes when driving it does.

2.) It gurgles and acts like it doesn't want to go when you give it gas

The engine was rebuilt about 30k miles ago the heads were shaved down 0.015 because they were warped.

Stock Exhaust but replaced both post cat o2 sensors

Not loosing any coolant/antifreeze

Installed
MSD Coil Pack
MSD 8.5mm Plug wires
NGK Platinum Spark Plugs
BBK Underdirve pulleys
BBK CAI

Possibly Purge valve solenoid? Mass air flow sensor? AIT sensor?

I'm no mechanic by any means but I try and do the best research I can on these things. It's aggravating replacing things and the car still running like crap. Any input would be appreciated greatly! And ask away, I'll help out as best as I can.
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Old 10-15-2013, 06:17 PM   #2
94EatonStang
 
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Join Date: Oct 2013
Vehicle: 94 Mustang 3.8 Convertible
Location: Indiana
Posts: 2
Christopher Brown
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Also I run 91 Octane because there was knocking running the lower grade fuel
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Old 10-15-2013, 06:17 PM
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gurgleling, help diagnose, knocking sound, rough start

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