Question about 1997 Chevrolet Blazer

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Can a 2001 4.3 Vortec engine be used to replace a 1997 4.3 Vortec in a S-10 Blazer without problems??

I need to replace my engine in a 1997 S-10 Blazer with a 4.3 Vortec. Can a 4.3 Vortec from a 2001 be used without problems?

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Yes they bolt right in.

Posted on Nov 05, 2012

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Posted on Jan 02, 2017

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SOURCE: My 4.3 vortec engine in my s10 blazer won't start

try the ignition module. if it is bad it does not send the signal for the the throttle body injectors to spray feul.

Posted on Oct 23, 2009

  • 288 Answers

SOURCE: 1995 chevrolet blazer stalls when you slow down

try checking air cleaner box to be sealed or dirty air filter and try to clean mass air flow sensor also check for dirty air intake only clean mass with special mass cleaner . also look for vac leaks and fuel pressure .

Posted on Jan 28, 2010

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Our fuel pump stopped working on our 98 Chevy Blazer V6 4.3L Vortec Engine, so we bought a new one. A couple days later (before replacing the fuel pump) it started up and ran but ran crappy. So we did


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Mar 27, 2013 | 1998 Chevrolet Blazer

1 Answer

My 01 4.3 vortec blazer starts stumbling when at red lights and stop signs any suggestions


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Oct 14, 2012 | 2001 Chevrolet Chevrolet Blazer

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I need a diagram for timing marks on a 2001 chevy blazer vortec


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Oct 02, 2012 | Cars & Trucks

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Oil capacity for 2001 blazer vortec v-6


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Oct 03, 2010 | 2001 Chevrolet Blazer

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Ok i have a blazer 95 4.3 vortec mi chk engin


Get the codes pulled, often an oil change place has all of the adapters. You need to know what the computer thinks is wrong, before you do anything.

Sep 25, 2009 | 1995 Chevrolet Blazer

1 Answer

89-98 chevy blazer


It's not worth doing all that conversion, buy the time you spend the time and money to convert the 89 4.3 to work on the 98 blazer, it would be cheaper to install a 98 vortec rebuild. The 89 4.3 have a TBI fuel injection system and the ecm on the 98 will not work and the bad news is that the ecm on the 98 also controls the transmission shift points and the 89 will not, so even if you swap the ecm to have the 89 4.3 engine work. the transmission will not shift. Sorry for the bad news but it would be cheaper to replace the 98 engine with the years of 1996 to 2001. Good luck and hope this helps. 

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Feb 22, 2009 | 1992 Chevrolet S-10 Blazer

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