2000 Mercury Cougar Hesitation in acceleration when A/C on

Tiny
PRMORGANJ
  • MEMBER
  • 2000 MERCURY COUGAR
  • 4 CYL
  • 2WD
  • MANUAL
  • 113,000 MILES
It seems that when the A/C is on that the engine does not have smooth acceleration as it did earlier in its life. It still gets good milage but not as much as before. I was told that this engine only has a throtle body injector, but I think it may be a Mazda 2.0 DOHC 122 CID which may have four injectors. On viewing the engine there appears to be 4 small devices connected by a common bracket just in front of throtle body. If that is true, would replacing those with remanufactured units help?
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Friday, August 1st, 2008 AT 11:29 AM

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Tiny
MERLIN2021
  • CERTIFIED MECHANIC
  • 17,249 POSTS
Probably not, your problem is most likley due to a need for cleaning out the fins in the radiator, and the a/c condenser, I use a blow gun with a long shaft. Blow in at the radiator from top to bottom, then out at the condenser the same way, it is important to thoughly clean them, this condition can cause the fuel to boil in the fuel rail.
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Friday, August 1st, 2008 AT 6:29 PM

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