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1996 Ford Mustang Boging out at 4,000 RPM, s

Tiny
UTIMUSTANG
  • MEMBER
  • 1996 FORD MUSTANG
Engine Performance problem
1996 Ford Mustang V8 Two Wheel Drive Manual 86.000 miles

i love mt 96 mustang gt. But when I get to about 4000 RPMs it starts to bog out on me like an missfire. I cheack my coil paks, my spark plugs, fuel fillter, air intake manifold and my ecm. But my mustang still bogs out. It killing on the streets. Please help.
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Wednesday, July 22nd, 2009 AT 12:14 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
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Thursday, July 23rd, 2009 AT 8:09 AM

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