What will cause my 2007 CTS Cadillac diagnostic test keep saying plugs 1 and 3 when I had 1st a complete tune up and I've changed 1 and 3 twice the engine light is on it flashes when I press the gas

Asked by Jul 23, 2017 at 05:00 PM about the 2007 Cadillac CTS 2.8L RWD

Question type: Maintenance & Repair

Car misfiring had complete tune up had to
go back diagnostic test said 1 and 3 had
them changed now engine light is on and
flashes especially when I press the gas
took it back and it's still telling me 1 and
3. I'm a disabled female on a tiny monthly
income. I can't afford this please help me
with a solution.

1 Answer

80,245

Cylinders 1 & 3 are next to each other. Compression test the two cylinders. If both cylinders have no or very low compression the head gasket has blown between the two cylinders causing them not to fire. HTH. -Jim

Your Answer:

Cadillac CTS Experts

  • #1
    Brandon Foster
    Reputation
    1,610
  • #2
    Gaetano Viesti
    Reputation
    1,080
  • #3
    Msparker1121
    Reputation
    750
View All

Related Models For Sale

Used Cadillac CTS-V
471 listings starting at $11,988
Used Cadillac STS
18 Great Deals out of 681 listings starting at $1,750
Used Cadillac SRX
211 Great Deals out of 7,851 listings starting at $1,695
Used Cadillac DTS
25 Great Deals out of 1,299 listings starting at $2,499
Used Chrysler 300
411 Great Deals out of 19,380 listings starting at $1,700
Used Dodge Charger
317 Great Deals out of 31,958 listings starting at $1,500
Used Cadillac Escalade
233 Great Deals out of 12,127 listings starting at $2,040
Used Ford Mustang
317 Great Deals out of 38,105 listings starting at $1,312
Used Chevrolet Impala
503 Great Deals out of 25,998 listings starting at $995
Used Dodge Challenger
173 Great Deals out of 23,462 listings starting at $6,950

Used Cars For Sale

2018 Cadillac CTS For Sale
20 Great Deals out of 1,863 listings starting at $33,488
2017 Cadillac CTS For Sale
15 Great Deals out of 671 listings starting at $24,493
2016 Cadillac CTS For Sale
4 Great Deals out of 272 listings starting at $22,980
2015 Cadillac CTS For Sale
18 Great Deals out of 593 listings starting at $14,991
2014 Cadillac CTS For Sale
16 Great Deals out of 644 listings starting at $14,988

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.