I have a 2008 Chevy Silverado 5.3. Truck idles good when in park but when I put it into gear the check engine light comes on. P0307, witch is Cylinder 7 misfiring. Ive changed all the lifters,coils,injectors and solnoids. Plugs and wires as well. Even turned off the AFM to see if that would help. cleaned the pushrods, made sure they worked. valley cover has been cleaned as well

20

Asked by Kevmcc02 Sep 09, 2017 at 03:11 PM about the 2008 Chevrolet Silverado 1500 Work Truck Extended Cab RWD

Question type: Maintenance & Repair

I have a 2008 Chevy Silverado 5.3. Truck idles good when in park but when I put it into gear the check engine light comes on. P0307, witch is Cylinder 7 misfiring. Ive changed all the lifters,coils,injectors and solnoids. Plugs and wires as well. Even turned off the AFM to see if that would help. cleaned the pushrods, made sure they worked. valley cover has been cleaned as well

Could my computer me messed up or stuck on that code some how?

2 Answers

540

Did you ever do a compression test on the cylinders, so your not wasting money on issues that don't exist. Ever have it scoped. Need more data.

3 people found this helpful.
20

I did a compression test and leak down. Checked the lift on the cam

2 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Rowefast
    Reputation
    10,500
  • #2
    John Carson
    Reputation
    9,670
  • #3
    Andrew Olsen
    Reputation
    9,660
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
126 Great Deals out of 6,796 listings starting at $3,975
Used Ford F-150
296 Great Deals out of 15,534 listings starting at $1,712
Used Chevrolet Silverado 2500HD
16 Great Deals out of 1,149 listings starting at $8,999
Used Toyota Tundra
46 Great Deals out of 1,128 listings starting at $5,999
Used Dodge RAM 1500
7 Great Deals out of 82 listings starting at $4,000
Used Toyota Tacoma
53 Great Deals out of 1,029 listings starting at $8,708
Used Chevrolet Tahoe
18 Great Deals out of 717 listings starting at $5,995
Used Chevrolet Colorado
25 Great Deals out of 1,378 listings starting at $4,900
Used GMC Sierra 2500HD
13 Great Deals out of 1,688 listings starting at $12,900
Used Ford F-250 Super Duty
28 Great Deals out of 1,155 listings starting at $8,995
Used Dodge Charger
41 Great Deals out of 602 listings starting at $4,888
Used GMC Yukon
18 Great Deals out of 736 listings starting at $5,998

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.