1997 Jeep Cherokee car hesitates and feels like it wants to

1997 JEEP CHEROKEE
165,000 MILES • 6 CYL • 4WD • AUTOMATIC
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EDFISHER
  • MEMBER
  • 14 POSTS
my car starts up great and runs nice when cold.
the problem comes when i drive it for a little while and then shut it off for about 20 minutes. it feels like it wants to shut off and hesitates at low acceleration when i drive it again. once i give it some gas and get it up to speed its fine again. my check engine light hasn't come on. i would greatly appreciate an answer
to this problem.
Jan 10, 2010 at 10:03 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check and test the following

Oxygen sensor
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
Cap and Rotor
Jan 10, 2010 at 10:13 AM
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