Runs bad

Asked by GuruYDNZM Feb 20, 2018 at 12:53 PM about the 2005 Dodge Caravan C/V Cargo FWD

Question type: General

My 2005  Dodge Caravan 3.3 engine code P0403
and P0406 came up I’ve change battery spark
plugs wires coil pack and EGR valve still  spuders
Runs bad could it me catalytic converter how do I
check

1 Answer
27,570

oilyspill answered 6 years ago

A clogged exhaust could cause problem. Check exhaust back pressure, use a pressure gage. With the proper fittings, you could remove front 02 sensor and screw in the gage. A spec I saw at idle says 1.5 psi or less. You could loosen the exhaust to let backpressure escape, to see if it performs better? Yeah, It will be a little loud. The cat seems to be the number one issue with too much backpressure. If backpressure is the problem?

Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Dodge Caravan Questions

CarGurus Experts

  • #1
    Paul
    Reputation
    2,080
  • #2
    tenspeed
    Reputation
    1,610
  • #3
    Dan Ritz
    Reputation
    1,540
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Dodge Grand Caravan
102 Great Deals out of 1,953 listings starting at $2,934
Used Honda Odyssey
44 Great Deals out of 983 listings starting at $2,495
Used Chrysler Town & Country
108 listings starting at $4,990
Used Toyota Sienna
36 Great Deals out of 747 listings starting at $4,200
Used Chrysler Pacifica
46 Great Deals out of 1,193 listings starting at $13,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.