Service Engine Soon - 1997 Chevy Suburban

Asked by May 11, 2015 at 07:19 AM about the 1997 Chevrolet Suburban C1500

Question type: Maintenance & Repair

So I am having trouble trying to figure out
what to do. My 97 Suburban (1500 LS)
keeps giving me a service engine soon
light. One day it just started, and my step
father checked the codes. It was basically
multiple misfires. And the O2 sensor. I
replaced all plugs, plug wires, rotor and
cap. Seemed to fix the issue. But now.... I
am getting service engine soon light again,
checked codes and it is only one now
saying cylinder 4 is misfiring. Pulled the
plug, and it was all dirty and corroded.
Cleaned it with a wire brush, reset light by
disconnecting the battery and that seemed
to fix it. BUT NOW........ Same light... No
vacuum leaks. No oil leaks from what I can
tell. I'm screwed..... Need to fix so I can
smog it!!

5 Answers


It could be valve seals or worn valve guides letting in oil and fouling the plug, or an intake gasket failure, especially if the intake gaskets have never been replaced.


Worn engine components, as mentioned above, can repeatedly foul out a spark plug on a single cylinder. Try using a spark plug anti-fouler on cylinder #4. Basically the anti-fouler screws into the head then the spark plug screws into the anti- fouler. The anti-fouler shields the spark plug's electrode and keeps it from fouling out. Your local auto parts store will have them. HTH. - Jim


is the service engine soon light the same as a check engine light?

3 of 3 people found this helpful.

Jay, on what type of vehicle? Some had a service engine light that was just a maintenance reminder light, while others it was a light for trouble codes in the engine management system.

I have a same problems with my 1997 Chevy Suburban 2500 4wheel drive. Service engine soon light, on and off. Check engine soon light, on and off.

Your Answer

Add photo

Related Questions

  • 2001 chevy suburban service engine soon light 1 answer

    I have a 2001 Chevy Suburban. When I drive 70 or over the service engine soon light flashes. In the same drive it flashed 13 times and went off for about 2 to 3 minutes then flashed 49 times and pau...

    2001 Chevrolet Suburban LT 1500 4WD


    Maintenance & Repair

  • My nephew just replaced engine in '97 \Chevy Suburban, now no fire, won' start, any ideas ? 18 answers

    My nephew just changed his V8 350, on a 1997 Chevy Suburban, previous engine ran, but had lower end noise, now replacement engine cranks, but won't fire, getting no light on spark tester, and repla...

    1997 Chevrolet Suburban K1500 4WD


    Maintenance & Repair

  • Clicking Noise 8 answers

    When driving my 1997 Chevy Suburban LS w/ Vortec 350 I can hear a clicking noise on the passenger side when passing by a building or in a quiet neighborhood....I'm wondering whether it's coming from t...

    1997 Chevrolet Suburban C1500


    Maintenance & Repair

  • if my 1997 chevy suburban wont crank when I turn the ignition what can I do. 4 answers

    The starter is new the alternater is good the battery is good when I turn the ignition the truck wont crank.

    1997 Chevrolet Suburban C1500


    Maintenance & Repair

  • 1997 Chevy suburban tranny 2 answers

    My 97 suburban tranny is slipping. I have to get it to over 2500 rpms let off the gas and push the gas again to get it to shift from 1st to 2nd. I need to know what I can do to fix it. I do not ha...

    1997 Chevrolet Suburban C1500


    Maintenance & Repair


Looking for a Used Suburban in your area?

CarGurus has 19,720 nationwide Suburban listings starting at $2,000.


Search Chevrolet Suburban Questions

Chevrolet Suburban Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 960
#2 Eric Fritz
Eric Fritz
Reputation 880
#3 Neal Turner
Neal Turner
Reputation 840
View All

Related Models For Sale

Used Chevrolet Tahoe
549 Great Deals out of 29,234 listings starting at $1,699
Used GMC Yukon
377 Great Deals out of 18,226 listings starting at $2,950
Used Ford Expedition
473 Great Deals out of 24,887 listings starting at $700
Used Lincoln Navigator
117 Great Deals out of 5,791 listings starting at $1,900
Used Ford F-150
2,195 Great Deals out of 206,316 listings starting at $1,499
Used GMC Suburban
137 listings starting at $1,995
Used Dodge Durango
273 Great Deals out of 22,704 listings starting at $1,200

Used Cars For Sale

2017 Chevrolet Suburban For Sale
10 Great Deals out of 9,346 listings starting at $39,491
2016 Chevrolet Suburban For Sale
21 Great Deals out of 1,848 listings starting at $36,899
2015 Chevrolet Suburban For Sale
16 Great Deals out of 1,126 listings starting at $29,000
2014 Chevrolet Suburban For Sale
19 Great Deals out of 513 listings starting at $19,900
2013 Chevrolet Suburban For Sale
33 Great Deals out of 664 listings starting at $14,000

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.