I have a 2000 s10 with a 4.3 vortec I keep getting a p0303 cylinder 3 misfire I've replaced computer spyder with injectors map mas idel air cap roter wires the works help very frustrated

10

Asked by Aug 15, 2014 at 09:51 AM about the 2000 Chevrolet S-10 2 Dr LS 4WD Extended Cab SB

Question type: Maintenance & Repair

3 Answers

79,195

Compression test cylinder number 3. If it tests low that's why it's misfiring. Could be a burned valve, worn piston rings, or possibly a blown head gasket. HTH. -Jim

1 people found this helpful.
10

That was my assumption to so I cracked the heads off took them to my buddy's machine shop and sure enough Cylender #3 had the worst problem with the valve seats cracked in half.There were also 4 others that were bad. So I'm having a valve job done and having all new valve seats put in. Valve job $360 Fel pro head gasket set $50 new head bolts $25 miscellaneous $60 So for $500.00 it'll be like brand new. Now he had 6 other shops try to fix this for a total cost $1700 and none of then seceded. In closing just goes to show that paying a $90 per hr shop rate isn't always the way to go. Just a simple compression test that took maybe 20 min sese it all. Thanks Jim Troy R

1 people found this helpful.
79,195

You're welcome Troy. Glad to help. -Jim

1 people found this helpful.

Your Answer:

S-10

Looking for a Used S-10 in your area?

CarGurus has 874 nationwide S-10 listings starting at $1,500.

ZIP:

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
    Reputation
    2,810
  • #2
    John Saffrahn
    Reputation
    1,110
  • #3
    Trebor66
    Reputation
    1,090
View All

Related Models For Sale

Used Ford Ranger
126 Great Deals out of 4,389 listings starting at $1,500
Used Chevrolet Silverado 1500
1,788 Great Deals out of 154,391 listings starting at $1,000
Used Toyota Tacoma
422 Great Deals out of 48,089 listings starting at $2,994
Used GMC Sonoma
3 Great Deals out of 282 listings starting at $2,150
Used Ford F-150
2,356 Great Deals out of 208,288 listings starting at $998
Used Dodge Dakota
82 Great Deals out of 3,059 listings starting at $1,495
Used Nissan Frontier
289 Great Deals out of 23,254 listings starting at $1,295
Used Chevrolet Blazer
704 listings starting at $900
Used GMC Sierra 1500
746 Great Deals out of 61,254 listings starting at $1,395
Used Dodge Ram 1500
326 Great Deals out of 9,355 listings starting at $1,995
Used Chevrolet Camaro
233 Great Deals out of 27,354 listings starting at $2,077
Used Chevrolet C/K 1500
677 listings starting at $2,200
Used Ford Mustang
260 Great Deals out of 37,873 listings starting at $1,350

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.