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1995 chevy blazer 4.3 vortex bad idling repaired fuel injection leak and replaced sparkplugs .its missing and lopes while idling trouble codes po300/po756/p1351/p1406/po122 help.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Diesel13
  • 11 Answers

SOURCE: 1995 Chevy Cavalier 2.2L Automatic

Check your egr vavle. i had this problem with my old cavalier and it was as easy as removing it and cleaning it. It's probably plugged up with carbon

Posted on Aug 27, 2008

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  • 98 Answers

SOURCE: p0420 p1351 95 chevy blazer?

Here's the complete chart of trouble codes for your Blazer...including the ones that you asked for. Hope it helps! Have a great day!




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Posted on Nov 23, 2008

  • 65 Answers

SOURCE: how to manually get a trouble code out of a 95 blazer with vortec

The vortec motor has been known for the so caller spider assembly which is the fuel injection set up inside the intake manifold going bad.The regulator starts leaking wich puts extra fuel into the motor.If that is it you should change the whole assembly.

Posted on Nov 30, 2008

  • 124 Answers

SOURCE: 2002 chevy blazer fuel pump (4 door)

yes you have to drop the tank. you will also need a fuel line tool to unhook the fuel lines. before you drop the tank see if tou can reach and wiggle the electrical connection on the top of the tank. these pumps have a pigtail issue. please rate

Posted on Dec 08, 2008

monkeybear45
  • 94 Answers

SOURCE: will a 94 engine 43. vortex fir in a 2000 blazer?

Call Jasper Engines in Indiana. Give them the serial number of the 94 engine. These guys can tell you if it will work or not. They are a great source of information and don't charge for answers! You may need the VIN numbers for both vehicles as well.

Posted on Nov 27, 2009

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1 Answer

What will cause motor not to start and smell like gas on 1995 chevrolet blazer 3.8liter vortex


check for gas leak if none found these had a problem with the spider injection system inside the intake cracking causing a leak and no start due to the poppet injectors not opening due to weak fuel pressure. these operate at 56lbs pressure and its critical.

Oct 14, 2014 | 1995 Chevrolet Blazer

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What exactly is the iac valve? It sounds like there are rocks inside the supercharger. I just wonder if fixing the coupling would make the car stop missing and loping? Could it be the iac valve causing the...


The Idle Air Control valve is what monitors your idle air/fuel mixture. It is is not functioning at normal parameters, then the car will not idle properly. It sounds like your supercharger my have a faulty bearing and may need to be repaired. Your idle issues may be linked to the IAC but it could also be your throttle control sensor. Another problem is the throttle plate shaft will wear on the housing and cause a vaccuum leak causing the air/fuel mixture to be lean. Do you have any trouble codes? If so, have these codes read and it will narrow down the problem.
Hope this helps.

Jun 19, 2010 | 1998 Pontiac Grand Prix

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93 s10 blazer, 4.3 engine code w...cranks and runs fine.new acdelco fuel pump in january. new plugs,cap and rotor button,new wires and coil. engine has a ''miss'' for lack of better word under load from...


I don' know if this could be your problem or not, but i had a simmiler problem on a 95 blazer i had,first i thought it was the egr valve, so i took it off cleaned it real good both valve and intake, put it back on it helped but it was still there, my friend a cert. michanic said it was in the injection system just a little skip in the engine when you were just crusing down the road at a steady speed like a gust of wind would hit you, at that time my friend witch is a certified michanic at a chevy dealer advised me to trade it off so i did, at that time it would cost me around 800 to 1000 bucks to fix, but i'am sure its a lot cheaper now, as this was 7 or 8 years ago. Thies injection systems were put on the 4.3 vortex engines, if yours is not a vortex i would say its still a problem with the throutle body.

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1995 chevy blazer runs fine for a little then starts loosingpower


this sounds like a fuel system problem the cpi (central port injection) systems that chevy used from 1993 to 2001 were very problematic i personally had a lot of trouble with mine unless you know what you are doin i would take it to the shop because its gonna take a lot of work just to get to the system for intance the whole intake manifold has to be taken off in order to get to it

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5.3 L Missing and Rough Idle Intermittently


i have a 2001 chevy z-71 5.3L. I keep getting a random/multiple misfire code for cylinder 1 . I have replaced plugs, wires, coil pack(only on #1 cylinder)., and fuel pump. I still keep getting the cylinder 1 misfire code. I put truck on a scanner and watched the cylinders. # 1 misfires at idle but quickly stops misfiring at around 1000 rpms. you can here the engine miss at idle but truck runs great on road . anyone else ever had this problem?

May 05, 2009 | 1999 Chevrolet Silverado 1500

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How to manually get a trouble code out of a 95 blazer with vortec


The vortec motor has been known for the so caller spider assembly which is the fuel injection set up inside the intake manifold going bad.The regulator starts leaking wich puts extra fuel into the motor.If that is it you should change the whole assembly.

Nov 30, 2008 | 1995 Chevrolet Blazer

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