Gmc 1500 vortec engine issue

Asked by Jun 03, 2017 at 05:05 PM about the 1997 GMC Suburban C1500

Question type: Maintenance & Repair

How do you know if your psiton is going out
or if you have a blown head gasket? My
truck is rattling like something is loose but
we cant find out where its coming from just
replaced the head gaskets and all seals and
spark plugs.

1 Answer

905

If it wasn't making any noise before doing the head gasket. There might be something in one of the cylinders. A nut, bolt, or some other debris that could have fallen into the engine. Could also be misadjusted lifters, or lifters that have not yet pumped up all the way. could also be bad base ignition timing. Engine noises are very tough to diagnose without being able to hear them. There are just too many things it could be.

Your Answer

GMC Suburban Experts

  • #1
    LouB
    Reputation
    1,370
  • #2
    Larry Thibert
    Reputation
    230
  • #3
    ShadetreeMech
    Reputation
    210
View All

Related Models For Sale

Used Chevrolet Suburban
4 Great Deals out of 369 listings starting at $5,871
Used GMC Yukon
16 Great Deals out of 931 listings starting at $3,000
Used Chevrolet Tahoe
3 Great Deals out of 672 listings starting at $4,995
Used Ford Expedition
14 Great Deals out of 347 listings starting at $2,900
Used GMC Sierra 1500
254 Great Deals out of 10,796 listings starting at $2,995
Used Ford F-150
450 Great Deals out of 10,155 listings starting at $1,400
Used Chevrolet Camaro
3 Great Deals out of 764 listings starting at $10,929

Used Cars For Sale

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.