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Weak spark on no. 6 cyl 2001 blazer

Ok to start off i have weak spark on no.6 cyl causing a miss fire on my 01 blazer....now heres where im stumped changed....cap and rotor ,wires , cam sensor, plugs crank sensor but still have week spark on no.6 tried switchin wires thinkin mabye one was bad (seen that before) but that wire and even plug would hit on other cyl....changed cap for sec. time thinkin i got a bad one but prob. is still there ....

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  • Cars & Trucks Master
  • 8,215 Answers

Something else wrong with that cylinder. Check compression and swap injectors, etc.

Posted on Jul 27, 2017

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mkv0525
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SOURCE: I have 96 gmc 350 vortec. missing really bad. Ive

ou need to check compression on all the cly. do you know which cly is dead?

Posted on Jun 12, 2009

  • 135 Answers

SOURCE: weak spark from dist cap to plugs. spark from coil

The engine is definitely in an over rich fuel condition if you are blowing black smoke. I would suspect a bad 02 sensor, but the flooding condition you describe at starting could be other things. I would check the codes and proceed from there.

Posted on Jul 13, 2009

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SOURCE: 91 jeep no spark

wd 40 your flywheel sensor plug

Posted on Sep 03, 2009

  • 973 Answers

SOURCE: I have a 96 Plymouth Grand Voyager SE, V6 3.3

Have your ECM (Computer) checked out, it coiuld be bad.

Posted on Jun 06, 2010

Testimonial: "Good advice"

  • 518 Answers

SOURCE: Chev 2001 blazer, misfire #6, have changed

engine is getting enough fuel at low revs,starved when opened up fuel filter suspect,clean out and test

Posted on Jul 09, 2010

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1 Answer

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I would say its the coil. A crank or cam sensor could cause one cylinder to miss, or go completely dead, but I doubt it would affect two cylinders. And you would get a code for either sensor.

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On the distributor passenger side radiator to fire wall. 2-4-6-coil
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