Question about 1998 Chevrolet Blazer

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Suburban 1998 1500 idles erradically when in gear it surges when brakes are applied

Changed spark plugs and fuel filter cause it feels like its misfiring and gas smells rich or off from engine when I rev it up also when I press gas pedal it stalls then its ok

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6ya6ya
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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: Chevy 1/2 ton 2wd 4.3 vortec rough idle tried everything I know

I had the same problem with my 96 Chevy 4.3. It idled rough enough to shake the truck at a stop. It revved up fine but sputtered on take off. My truck did not want to stay in overdrive because of the low rev. I changed cap, rotor, plugs, wires and this did nothing. Finally I took the intake off and found corrosion on the side intake gaskets near the rear of the engine causing a vacuum leak.

Posted on Nov 11, 2008

  • 1 Answer

SOURCE: s10 blazer surges

might wanna check intake gasket for leaks on the high engine rev as for tranny might be in the comp

Posted on Dec 07, 2008

  • 1 Answer

SOURCE: 89 chevy beretta gt- surges at idle, backfires and hesitates

Hi! I had the same problem with my 88 2.8 Ltr. Had dirty fuel Injectors. Put in fuel Inj. cleaner in gas tank, after a couple of days, runs like a dream,no more problems. Give it a try. Take care,Leo B. Flushme@shaw.ca

Posted on Feb 04, 2009

  • 66 Answers

SOURCE: 1995 Chevy K1500 4.3L V6. Engine has inconsistant idle

Have you changed the fuel pump yet?I had the same exact problem.I replaced my fuel pump with an AUTOZONE PIECE OF JUNK fuel pump.That pump lasted almost 2 days.The second day i had it the truck didnt want to start but it did and it ran like ****,and when i put it in gear it ran as long as I didnt touch that gas pedal.You could go get a fuel pressure test or just replace it,your call.You might want to check your filter too but im sure its the pump.Good luck

Posted on Apr 27, 2009

polarcycle
  • 1392 Answers

SOURCE: Idles okay, runs rough when gas applied

Either a bad MAP sensor, or TPS. What is the code for the check engine light? This will most likely tell you what it is.

Posted on May 27, 2009

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How come while driving my transmission sometime jerks?


interesting, ricky ? could b anything. fuel filter needs changed, the fuel we use today is garbage, ethanol is bad for our older engines. add some of that new dirt to tank, something360. ??? also, maybe a wire connection is loose., or bad spark plug wires? something is missing its continuity , making the engine miss, not your transmission, u hope ? start with checking your battery conn., clean, tight, etc., replace plug wires, change spark plugs, maybe ? but your plug wires could b the problem. ??? think about it, engine starts ok, its when its running does the problem come up. you have fuel, you need spark, you also need clean air .......... change air filter....... pcv valve......egr valve ?? could b sticking ......you treat yourself good, yes? treat your engine good...whens last time the transmission fluid and filter was changed ??? that could also cause a miss, a surge......yes? i hope this helps you ricky, just use common sence, it always serves me well, good luck, ken

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How do you know if your spark plugs are the problem?


bad spark plug or bad wire will cause one cylinder not fire cause engine to surge.but change spark plugs and wires, if engine still surge have fuel filter changed, check fuel pressure weak fuel pump will cause engine surge.if you see check engine light flashing code scan for faulty TPS SENSOR OR FAULTY FUEL INJECTOR OR BAD IGNITION COIL.FAULT IN THE PCM.

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Chevy truck '02 surges between 45 and 55 mph


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Hi! I had the same problem with my 88 2.8 Ltr. Had dirty fuel Injectors. Put in fuel Inj. cleaner in gas tank, after a couple of days, runs like a dream,no more problems. Give it a try. Take care,Leo B. Flushme@shaw.ca

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