Question about 1993 Chevrolet S-10 Blazer

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Air intake problem

When i press the gas it backfires and the the gears are runnin higher than usually, its a 93 chevy s 10

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  • Terry Janzen May 11, 2010

    How many miles are on the unit? Do you have any trouble codes? When was your last tune-up? Is your tranny fluid at the proper level?

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  • 52 Answers

Check air temp sensor

Posted on Feb 14, 2009

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Blazer backfires and stalls oder of gas after


if your backfiring I would start at timing and or ignition problems, when it backfires air is pushed back out intake.

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fuel lines inside the intake plhenum may be cracked and leaking inside the plhenum. same thing happened to my 1992.sonoma. they are made of a plastic material and tend to crack right in the bend of these lines.

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I have a 96 chevy blazer with a 4.3 vortec rough


Do a compression test on all of your cylinders when it is cold. Backfiring is a sign of a worn valve seat allowing mixed fuel and air (lit by spark) to be forced back into the intake. You will probably see compression loss on one or more cylinders.

Also... there is a chance that the EGR valve is not totally seated when the engine is cold with just a small blow by. The EGR valve seats coke up over time with black gunk.

Jan 28, 2010 | 1996 Chevrolet Blazer

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I have a 1993 1500 chevy truck with the 5.7 tbi my problem is the rpms go up and down 200 to 300 points all the time even at highway speeds the truck still seems to run good had the alt. Checked out its...


There are a couple of things i would check for.The first would be a real good check for vacuum leaks all around the intake manifold.2nd i would verify that ignition timing is set where it should be.If these 2 check out ok i would check or replace the idle control motor on the throttle body.Let me know if this helps or you need more info.

Jan 10, 2010 | 1993 Chevrolet K1500

1 Answer

I have a 93 chevy s-10 blazer. Every so often it


have a look at the ignition switch, the electirc switch on the column, not the key part. also check connections at starter and ground at engine ,make sure there thight and not cororaded.

Dec 16, 2009 | 1993 Chevrolet S-10 Blazer

1 Answer

Engine Performance problem 1997 Chevy S-10 4


According to my book, the first code is the brake control rough road sensor, and P0302 is a cyllinder #2 misfire. Check the gap on your plug, and make sure the plug wire is on all the way. Give the boot an extra good push. Backfiring or misfiring under load is always caused by poor ignition. You may also have a faulty plug or wire.

Oct 21, 2009 | 1997 Chevrolet S-10 Pickup

1 Answer

1994 Buick Skylark. Lot of hesitation and jerking, power locks


HI MY NAME IS JUAN:
I HAVE A 93 BUICK SKYLARK CUSTOM
AND I HAD THE SAME HESITATION.
I CHAGED GAS FILTER, AIR FILTER, AND USE SEA FOME IN MY GAS TANK AND USE IT ALSO TO CLEAN THE INTAKE SYSTOM, AND IT HELPED ALOT. TWO MONTHS DOWN THE LINE HADE THE SAME HESITATION AND IT WAS ONE OF THE INISION COIAL PACK WAS NOT GIVING THE ELETRICAL SPARK TO THE PLUG. I CHECK IT BY PULLING THE CABLE OFF THE SPARK PLUG WITH THE CAR RUNNING AND FOUND THE ONE THAT WAS NOT GIVING SPARK. I REPLACED THE PACK FOR THAT CILINDERS PLUG AND THE PROBLEM WAS GONE.
HOPE THIS CAN HELP YOU.

Jun 17, 2009 | Buick Skylark Cars & Trucks

1 Answer

Transmission does not want to shift up into a higher gear


I'd run a code check first, just to give you an idea if anything is leaving footprints in there. Transmission performance is somewhat related to engine performance but if you haven't serviced trans in a long time, do it.(if there is a lot of debris in there it may be time for a rebuild) Backfiring may be caused by an air leak in the exhaust manifold, allowing gasses in front of the cat to re-ignite. But, this could be caused by other things as well...that's why code read is important.

Feb 21, 2009 | 1996 Jeep Cherokee Country

1 Answer

Ruough runnin jetta


Did you check the timing? Also make sure the injectors are putting out the correct amount of fuel. By oxygen sensor I'm assuming you replaced the MAF (mass air flow) sensor? Are all the vacuum lines in good shape and is the EGR vavlve actuating correctly (they can get gunked up)? Is air getting into the fuel lines somewhere? Is the engine not getting enough air when the turbo isn't on? Maybe your intake is clogged up but this isn't extremely likely since you'd notice power loss at higher speeds. What was done recently to the vehicle that might have caused this?

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