Knocking noise or exhaust leak

Asked by Jul 18, 2017 at 05:39 AM about the 2008 Chevrolet Silverado 1500 LT1 4WD

Question type: Maintenance & Repair

So I have a 2008 Silverado 6.0 v8 around 160k
miles. I recently changed the oil in it using 5w-30
synthetic high mileage oil. I also discovered a small
hole in the exhaust pipe. So I changed the oil in the
truck...2 days later I patch the hole in the exhaust
everything is fine until I drive about 40 miles.
Whenever I get to about 40 miles I hear a small
ticking/knocking noise and it's annoying. And when
I come to a stop my truck sounds bad, like a diesel
almost just idling. But after the truck cools and sits
for a while and I start it up and drive short distant
everything is fine. No knocking, truck sounds good.
Only after I've been driving awhile will the noise
appear and sometimes will even go away like the
truck fixed itself. Also my engine light came on the
same day that I patched the hole in the exhaust.
Took it to autozone and th readings came back that
my oil pressure sensor needed repair and to
reprogram ecu sensors. Confused and need help
trying to pinpoint what's going on

2 Answers

258,035

Ticking can be an indication of an exhaust leak which could trip the CEL to come on. Have your exhaust inspected first.

Gotta be something with the oil. Oil pressure light will flash on for 5 seconds and turn back off. Checked oil and got plenty of oil in it. How do I fix it

Your Answer

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    2,660
  • #2
    Rowefast
    Reputation
    2,000
  • #3
    Silverado_owner_2006
    Reputation
    1,710
View All

Related Models For Sale

Used GMC Sierra 1500
255 Great Deals out of 10,555 listings starting at $1,775
Used Ford F-150
523 Great Deals out of 10,148 listings starting at $1,800
Used Chevrolet Silverado 2500HD
12 Great Deals out of 1,018 listings starting at $4,000
Used Dodge Ram 1500
39 Great Deals out of 512 listings starting at $2,500
Used Toyota Tundra
36 Great Deals out of 1,132 listings starting at $2,140
Used Toyota Tacoma
39 Great Deals out of 1,014 listings starting at $5,850
Used Chevrolet Tahoe
5 Great Deals out of 725 listings starting at $4,995
Used Chevrolet Colorado
20 Great Deals out of 1,545 listings starting at $1,999
Used Ford F-250 Super Duty
25 Great Deals out of 857 listings starting at $2,000
Used GMC Sierra 2500HD
20 Great Deals out of 1,056 listings starting at $3,995
Used Nissan Titan
28 Great Deals out of 522 listings starting at $4,950

Used Cars For Sale

2018 Chevrolet Silverado 1500 For Sale
4,888 listings starting at $29,869
2017 Chevrolet Silverado 1500 For Sale
14 Great Deals out of 3,865 listings starting at $2,208
2016 Chevrolet Silverado 1500 For Sale
28 Great Deals out of 221 listings starting at $24,991
2015 Chevrolet Silverado 1500 For Sale
50 Great Deals out of 461 listings starting at $14,995
2014 Chevrolet Silverado 1500 For Sale
33 Great Deals out of 346 listings starting at $19,977

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.