What caused this damage to the piston and head?

Asked by Oct 05, 2016 at 06:20 PM about the 2007 Jeep Grand Cherokee Overland 4WD

Question type: General

I am trying to figure out what caused the damage to this piston and head. I
also found little pieces of metal in the intake plenum. not sure what they are
either? Valves, rockers, springs, rods all look okay.

8 Answers

27,805

is the plug gap/s closed??? how long has it sat without starting? did you ever here knocking///pre. ign !

27,805

also what does the top of the pistion look like... ?

the plug gap is not closed. It was driven every day. The only knocking was when it died.

piston matches the head damage.

pic

head

chunks found in intake plenum

dropped a valve guide

Your Answer

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 73,291 nationwide Grand Cherokee listings starting at $1,200.

ZIP:

Jeep Grand Cherokee Experts

  • #1
    inuevafreak
    Reputation
    2,150
  • #2
    Tom Demyan
    Reputation
    1,940
  • #3
    thejeepdoctor
    Reputation
    1,910
View All

Related Models For Sale

Used Dodge Durango
314 Great Deals out of 24,159 listings starting at $1,500
Used Jeep Wrangler Unlimited
509 Great Deals out of 48,456 listings starting at $8,995
Used Ford Explorer
1,053 Great Deals out of 71,118 listings starting at $2,100
Used Toyota 4Runner
351 Great Deals out of 25,642 listings starting at $1,750
Used Jeep Wrangler
441 Great Deals out of 19,036 listings starting at $2,990
Used Dodge Charger
359 Great Deals out of 30,695 listings starting at $2,000
Used Chevrolet Tahoe
836 Great Deals out of 42,601 listings starting at $1,980
Used Ford F-150
2,922 Great Deals out of 215,447 listings starting at $1,295
Used Chevrolet Silverado 1500
2,478 Great Deals out of 177,594 listings starting at $699
Used BMW X5
349 Great Deals out of 15,540 listings starting at $2,995
Used Dodge Challenger
271 Great Deals out of 24,369 listings starting at $7,750
Used Jeep Compass
310 Great Deals out of 44,603 listings starting at $2,000
Used Toyota Highlander
540 Great Deals out of 34,416 listings starting at $2,450
Used GMC Yukon
602 Great Deals out of 22,354 listings starting at $1,200

Used Cars For Sale

2018 Jeep Grand Cherokee Overland 4WD For Sale
2,216 listings starting at $38,587
2017 Jeep Grand Cherokee Overland 4WD For Sale
3 Great Deals out of 582 listings starting at $36,919
2016 Jeep Grand Cherokee Overland 4WD For Sale
3 Great Deals out of 129 listings starting at $30,000
2015 Jeep Grand Cherokee Overland 4WD For Sale
15 Great Deals out of 657 listings starting at $23,995
2014 Jeep Grand Cherokee Overland 4WD For Sale
23 Great Deals out of 613 listings starting at $20,839

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.