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1988 Chrysler New Yorker when car is warm, it has a stallin

Tiny
YA99MA
  • MEMBER
  • 1988 CHRYSLER NEW YORKER
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 88,000 MILES
When the weather warms up, the car stalls out, it feels like a vapor lock, it stutters under load, wiil idle, but once I accelerate, it hesitates, and stalls. Let the car cool down, it runs fine, for another half hour. All winter, I had no promblems.
Saturday, April 25th, 2009 AT 10:14 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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Sunday, April 26th, 2009 AT 5:25 AM

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