Engine knock after over heating. Only knocking when under load. What could it be?

40

Asked by kipper33 Feb 02, 2016 at 07:34 PM about the 1993 Chevrolet C/K 2500 Silverado Extended Cab 4WD

Question type: Maintenance & Repair

Engine knock after over heating. Only knocking
when under load. What could it be?

My friend bought a truck from another friend of
mine. Long story short he sold it because he blew
a lower radiator hose and overheated and now it
knocks when under load/accelerating. It doesn't
knock if it's parked and you revv it or if it's in
neutral and you revv it. Only happens while driving.
The friend that bought it has another motor to put
in if he has to. But we want to see if we can fix this
one first. What could the problem be? Thanks in
advance.

61,115

Andrew answered 8 years ago

Or you blew up the motor. If you overheated it enough to damage the knock sensor then you defiantly ruined the engine. It would have to be on fire.

3 people found this helpful.

Mark helpful

Your Answer:

Engine knock after over heating. Only knocking when under load. What could it be? 1 Answer

Engine knock after over heating. Only knocking when under load. What could it be? My friend bought a truck from another friend of mine. Long story short he sold it because he blew a lower radiator...

1993 Chevrolet C/K 2500 Silverado Extended Cab 4WD

-

Maintenance & Repair
what's causing my engine noise? 93 silverado. 2 Answers

Engine knock after over heating. Only knocking when under load. What could it be? My friend bought a truck from another friend of mine. Long story short he sold it because he blew a lower radiator...

1993 Chevrolet C/K 2500 Silverado Extended Cab 4WD

-

Maintenance & Repair
Engine stalls when accelerating 1 Answer

I have a 94 Chevy p/u 350 engine, truck runs great most of the time, but after running for a while, at red light I can hear the engine loading up, when I try to go it starts acting like its out of...

1994 Chevrolet C/K 2500 Silverado LB 4WD

-

Maintenance & Repair
I have a 1961 chev n the starter just clicks but won't crank it over. It's a 283 in her n trying to get it running after like ten years or more of sitting. Any ideas?? 1 Answer

Beautiful classic just once I get it running I wanna restore it.

Chevrolet C/K 2500

-

Maintenance & Repair
I have a 1989 Silverado with a remanufactured tbi, new injectors, new Russell performance stainless line, an6 fittings, new ac delco fuel pump, new fuel tank and I'm only getting 6 psi at my Tbi. I have an adjustable fuel pressure regulator and new diaphragm and spring. When I kink the return line it jumps to 14psi. No kinks in the lines. Please help. 3 Answers

I have a 1989 Silverado with a remanufactured tbi, new injectors, new Russell performance stainless line, an6 fittings, new ac delco fuel pump, new fuel tank and I'm only getting 6 psi at my Tbi. I ...

1989 Chevrolet C/K 2500

-

Maintenance & Repair

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. Content will be removed if CarGurus becomes aware that it violates our policies.