Question about 1992 Chevrolet S-10 Blazer

1 Answer

Loud knocking in the engine of a 2000 4.3 l chevy blazer.

Posted by on

  • 1 more comment 
  • trailB Nov 13, 2008

    It only has 30,000 miles on it(wife's car).
    We had it since new,oil changed every 2,500-3,000 miles.It has never had a problem till now.I changed the oil and after about a week she started knocking as if it had a bad valve(sounds like a bad lifter,but it has a DOC).
    Just for kicks I changed the oil and filter again,but it did not help.
    To top it off,factory warranty ran out 4 months ago.

  • samanthafett Dec 04, 2008

    i have been having problems with my water pump and now my blazer is knocking it only does it when i first crank up the car or when i press the gas help!

  • castler_70 Dec 08, 2008

    I have a loud knock coming from my engine when my 2000 Blazer(65,000 miles) is cold. It eventually goes away, but can last for quite a while.


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 3 Answers

If it is not mechanical try your anti knock sensor. i had one go out on my v8

Posted on Dec 16, 2008

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My 2000 chevy blazer is knocking, but from the front of the motor, has good oil pressure. changed the oil & there was very very minute dirt/shavings. Transmission has been acting up going into 2

Check the water pump in the front of your engine for bearings going out. Have your tranny fluid changed & have the 2 shift selonods replaced, if the tranny is OK.

Feb 15, 2015 | 2000 Chevrolet Blazer

1 Answer

Engine knocking on a 2000 Chevy blazer LS. I did a tuneup and no knocking sound at first, drove for 50.5 miles and parked it next morning I started it and it sounded like the lifters were rattling and a...

I don't know what engine you have. If it is the v6 then you probably have the death knock my v6 just did that last month! a new crate motor cost 1200$ and put it in your self.

Oct 17, 2010 | 2000 Chevrolet Blazer

1 Answer

2000 chevy 1500 4.6 loud knocking in mornings

Possible broken piston ring(s). Does the engine use any oil ?

Mar 06, 2010 | 2000 Chevrolet Silverado 1500

2 Answers

2000 chevy blazer (4.3 engine) has a hard time starting in the

dirty fuel filter or faulty pump....just a guess...

Feb 15, 2010 | 2000 Chevrolet Blazer

1 Answer

I have a very loud knock in a 97 Chevy Blazer. I heard this is a common problem with this year/make/model vehicle. Engine has 121,000 miles and I just purchased vehicle as cheap transportation. Any...

drain and check the oil for matal contamination, from the sound of things you have had a bearing let loose, should that be thecase a rebuilt long block is your best bet

Dec 06, 2009 | 1997 Chevrolet Blazer

1 Answer

I have a 2000 chevy blazer 4.3l engine\is backfiring

Start by checking each cylinder for spark with a good spark tester. A misifre is either spark or fuel, so you can cut the problem in half. The engine light is probably on due to the misfire.

Sep 20, 2009 | 2000 Chevrolet Blazer

1 Answer

Where is the IAC on a 2000 Chevy Blazer

On the intake manifold ( top of engine ) near air throttle body ( like where a carburator would be ) pressed against throttle linkage. Hope this helps.

May 04, 2009 | 2000 Chevrolet Blazer

Not finding what you are looking for?
1992 Chevrolet S-10 Blazer Logo

442 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

61037 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides