What would make a knocking sound in my engine and what kind of problem could it be?

Asked by Jul 26, 2015 at 03:12 PM about the 1997 Chevrolet Blazer 4 Door LT

Question type: Maintenance & Repair

I have a 1997 Chevy blazer.  The engine started running hard and making a loud  knocking sound.

4 Answers

Loud, unfortunately, could be a thrown rod. Connecting rod from piston to crankshaft breaks, wrist pin breaks, cap on rod comes off from crank. Serious.

1 out of 1 people think this is helpful.
18,230

Is the engine missing also along with the knock ?

3 out of 3 people think this is helpful.

Hi ya bud. He said running hard...I took that to mean running badly...?

1 out of 1 people think this is helpful.
65,045

Sounds like a thrown rod. Not worth fixing in my opinion. HTH. -Jim

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Blazer

Looking for a Used Blazer in your area?

CarGurus has 1,152 nationwide Blazer listings starting at $700.

ZIP:

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,940
#2 yetilikesbeer
yetilikesbeer
Reputation 1,220
#3 Rowefast
Rowefast
Reputation 990
View All

Related Models For Sale

Used Chevrolet S-10
11 Great Deals out of 1,360 listings starting at $1,595
Used Chevrolet Tahoe
583 Great Deals out of 27,619 listings starting at $1,500
Used GMC Jimmy
261 listings starting at $2,495
Used Ford Bronco
166 listings
Used Ford Explorer
831 Great Deals out of 75,017 listings starting at $1,200
Used Chevrolet Camaro
150 Great Deals out of 32,742 listings starting at $1,729
Used Jeep Grand Cherokee
1,086 Great Deals out of 74,359 listings starting at $950
Used Ford F-150
2,261 Great Deals out of 209,447 listings starting at $1,499
Used Chevrolet C/K 1500
887 listings starting at $2,500
Used Jeep Cherokee
446 Great Deals out of 59,772 listings starting at $1,495
Used Chevrolet Suburban
360 Great Deals out of 19,149 listings starting at $2,295
Used Jeep Wrangler
289 Great Deals out of 18,693 listings starting at $2,995

Used Cars For Sale