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2001 Jaguar S-Type 2001 Jaguar S Type hesitates

Tiny
CVN65
  • MEMBER
  • 2001 JAGUAR S-TYPE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 78,000 MILES
My 2001 Jaguar S Type has no acceleration above 3k RPM when is in neutral. When running at 40MPH hesitates, above 45 -50 MPH runs smooth on a flat surface. Uphill at any speed starts hesitating. Engine light comes on but code won't register in the computer. Engine light goes off as soon as I reach a level surface or on a decline. I replaced the fuel filter and problem still exist. Any ideas as to what to check or what should be done to rectify the problem? Thanks
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Tuesday, April 6th, 2010 AT 5:42 PM

2 Replies

Tiny
CVN65
  • MEMBER
  • 6 POSTS
Before going forward with the check list that you provided, I used the OBD II PocketScan Code Reader to diagnosed the car and I am not sure what the below results mean or what is telling me to do next. I wrote this down as it appeared on the screen. Any help will be appreciated.

0 Codes
MIL OFF
Monitors
1 INC
EVAP
6 Ready
Misfire
Fuel
Comp
Catlyst
O2 sensor
O2 Htr
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Sunday, April 11th, 2010 AT 11:08 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Start by doing a minor tune-up such as plugs/wires and injection cleaner and see what happens
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Sunday, April 11th, 2010 AT 4:08 PM

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