I change the timing chain on my 2000 sunfire 2.4 but its backfiring

Asked by Mar 31, 2014 at 09:07 PM about the 2000 Pontiac Sunfire GT Convertible

Question type: General

I changed the timing chain on my 2.4 and when  I crank it back fires. I checked the timing
and it was correct. Theres good amount of compression.

2 Answers

475

what is your compression readings, in psi, across the 4 cylinders?

4,735

Did you rotate the crank or cam before you replaced the chain? You might be set up 180 degrees off. Check the rotor position against #1 TDC. Both valves are closed and #1 is ready to fire when it pushes your finger out of the spark plug hole while cranking. (With the coil disabled!)

1 of 1 people found this helpful.

Your Answer

Pontiac Sunfire Experts

  • #1
    John Saffrahn
    Reputation
    2,760
  • #2
    Joeyadams
    Reputation
    1,320
  • #3
    Warren0007
    Reputation
    1,250
View All

Related Models For Sale

Used Chevrolet Cavalier
958 listings starting at $1,000
Used Pontiac Firebird
12 Great Deals out of 814 listings starting at $1,900
Used Pontiac Grand Am
1,091 listings starting at $1,599
Used Ford Mustang
759 Great Deals out of 42,755 listings starting at $1,300
Used Pontiac Grand Prix
35 Great Deals out of 2,730 listings starting at $1,200
Used Honda Civic
832 Great Deals out of 78,398 listings starting at $900
Used Chevrolet Camaro
422 Great Deals out of 31,785 listings starting at $2,395
Used Chevrolet Impala
591 Great Deals out of 34,660 listings starting at $1,000
Used Toyota RAV4
893 Great Deals out of 60,069 listings starting at $1,690

Used Cars For Sale

2005 Pontiac Sunfire For Sale
67 listings starting at $2,650

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.