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

148,975

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.
17,660

Is the engine missing also along with the knock ?

3 out of 3 people think this is helpful.
148,975

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

1 out of 1 people think this is helpful.
61,345

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 1,343 nationwide Blazer listings starting at $1,995.

ZIP:

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,900
#2 yetilikesbeer
yetilikesbeer
Reputation 1,190
#3 Rowefast
Rowefast
Reputation 820
View All

Related Models For Sale

Used Chevrolet Tahoe
775 Great Deals out of 28,451 listings starting at $1,500
Used Chevrolet S-10
10 Great Deals out of 1,656 listings starting at $2,450
Used GMC Jimmy
288 listings starting at $1,995
Used Ford Explorer
936 Great Deals out of 73,994 listings starting at $750
Used Ford Bronco
192 listings
Used Jeep Grand Cherokee
843 Great Deals out of 68,676 listings starting at $864
Used Ford F-150
2,700 Great Deals out of 212,349 listings starting at $1,000
Used Chevrolet Camaro
279 Great Deals out of 38,301 listings starting at $1,250
Used Chevrolet C/K 1500
1,048 listings starting at $2,000
Used Chevrolet Impala
796 Great Deals out of 34,384 listings starting at $799
Used Dodge Durango
299 Great Deals out of 24,117 listings starting at $1,500

Used Cars For Sale