I have a knocking noise on my 1996 chevy truck.

Asked by Dec 03, 2013 at 06:45 PM about the 1996 Chevrolet C/K 1500 Cheyenne Extended Cab SB

Question type: Maintenance & Repair

It does the knock when the truck is cold and goes away when its warmed up. I changed
the oil from a 5w-30 to a 10w-30 and it went away for a while and now it started back
up. The truck almost up to 180,000 miles on it . I'm using super tech oil and the oil filter
is a ac delco. I been told by people that it could be a piston slap,lifters or that i change
oil brand. It could be anything and really want to know what it is rather than hearing
from different mechanics saying its this and that. Please help!

4 Answers

795

If its up top its a piston slap...if it's down below the crankshaft bearings are bad

1,905

Well at this point some Lucas will not hurt. It may help get rid of some noise but you still have the potential of it break one day.. I have used it and got results but if it's a bearing it's not long to live..

795

Very true it will only delay the inevitable

16,405

It may be a valve lifter needing replacing. It may be leaking and until the oil is built back up when started it will knock. check that out first before tearing down or replacing an entire motor.

Your Answer

C/K 1500

Looking for a Used C/K 1500 in your area?

CarGurus has 828 nationwide C/K 1500 listings starting at $3,000.

ZIP:

Chevrolet C/K 1500 Experts

  • #1
    Andrew Olsen
    Reputation
    3,750
  • #2
    John Saffrahn
    Reputation
    2,650
  • #3
    Rowefast
    Reputation
    2,200
View All

Related Models For Sale

Used GMC Sierra 1500
1,160 Great Deals out of 65,796 listings starting at $1,750
Used Ford F-150
2,851 Great Deals out of 212,987 listings starting at $1,295
Used Chevrolet C/K 2500
208 listings starting at $5,498
Used Dodge Ram 1500
422 Great Deals out of 10,850 listings starting at $1,499
Used Chevrolet Tahoe
796 Great Deals out of 42,148 listings starting at $1,980
Used Chevrolet Camaro
468 Great Deals out of 31,526 listings starting at $3,550
Used Chevrolet C/K 3500
206 listings starting at $1,500
Used Toyota Tacoma
679 Great Deals out of 46,264 listings starting at $2,700
Used Chevrolet S-10
14 Great Deals out of 1,217 listings starting at $1,550

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.