1999 Dodge Caravan Next Step

Tiny
NBRISTOW
  • MEMBER
  • 1999 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 149,000 MILES
I have had a tuneup with the replacing plugs, wires, air filter and battery. I intend to replace coil pack as well. The van is running very rough with los of power and acceleration. I still have a check engine light. Diagnostic code is P1491 which is differing on meaning from shop to shop. They are saying either radiator fan relay or emission control module.
Tuesday, February 10th, 2009 AT 3:57 PM

1 Reply

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
P1491 is for the radiator fan relay. Whomever told you emission problem misinformed you. They must have been thinking about P1451.

If the coil pack has never been replaced, I would do that before you do any other diagnostic. But if it has been replaced, I would check to make sure that it is still within spec.

Here is the procedure for P1491.


https://www.2carpros.com/forum/automotive_pictures/55316_99caravanp1491_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_99caravanp1491_2_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_99caravanp1491_3_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_99caravanradrelay_1.jpg

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Wednesday, February 11th, 2009 AT 12:33 AM

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