Question about 1998 Chevrolet Blazer

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Why my 2001 blazer cranks but doesn't start on damp high humidity days

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 2001 blazer will crank fine but wont start unless

what is the fuel pump pressure for a 2001 chevrolet blazer 4.3

Posted on Aug 11, 2010

  • 1509 Answers

SOURCE: v6 blazer/code 300/changed plugs,wires,coil,vaccum

Wet weather starting and missfire problems are almost always in the ightion system. The cap and rotor are the most common reasons and the coil is next. Code 300 is random multicyclinder missfire. The coil wire even if it's good can get intotroble. Something that's fun to do if you can is to watch the motor while your trying to start it in the dark. Sparks should'nt be ging anywhere so if you see some those parts are bad.

Posted on Mar 04, 2011

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My Blazer cranks over and over...killed the battery : ...next morning the second time I tried cranking it over it made a poof sound and started but with a lot of chugging. Can anybody help please?


Lynda, If it is the 4.3 V6, they are prone to getting moisture in distributor which causes the symptoms you are talking about including the poof. You can have scanned to see if trouble codes are stored, you may get multiple misfire.
If continues doing this have cap and rotor replaced and if wires and plugs are old do them to. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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Apr 01, 2016 | 2001 Chevrolet Blazer

1 Answer

Can moisture get in the cap and cause the vehicle to not start?


This is a very peculiar malfunction with your car that cannot be fully diagnosed over a computer. Contact a mechanic.-----------------------------------------------------------------------------------
super vag k+can

Jan 07, 2013 | 2001 Chevrolet Blazer

1 Answer

I have high voltage at the coil out put....ICM test ok have not checked crank sensor... will not start fuel supply ok


High voltage at the coil means nothing. Hook it to a plug and hook a timing light to that cylinder. If during cranking the timing doesn't flash, you still have ignition problems. Note, it must flash during cranking. Hold trig down.

May 25, 2011 | 1996 Chevrolet Blazer

1 Answer

96 chevy blazer won't start


When you say it doesn't start...Does it crank over? Does it need a jump??

Assuming that it cranks, but doesn't start...

If it's a moisture problem there could be a problem with the distributor cap. If there's a crack in it, or it it just isn't sealed well enough. It'll crank-n-crank-n... Until it's warm for a day or so. I just went through the procedure on how to replace it for the novice, same vehicle. Take a look at that. In the interim there's a spray "wire dryer" that might help, or he could spray some WD-40 on the cap.

Another way to check is to wait until it gets dark and get a helper. One person cranks the engine, the other looks at the cap and wires. If there's any sparks from the wires, or a crack in the cap, it's a lot easier to see.

Feb 26, 2010 | 1996 Chevrolet Blazer

2 Answers

My 1994 jeep sport 4l won't start it won't start for the first time when I washed it at the car was washed under neath and under hud, left it runnung, then shut it of and it would'nt start. next day it...


You should never wash your engine. It can really mess with the computer sensors. However since you now have a problem in the rain, I'd change the wires, cap and rotor. (likely old and sensitive to humidity) Also, look at your ignition coil in the dark...if you see any spark or electrical "haze" where the coil wire goes in, change the coil.

Jun 12, 2009 | 1994 Jeep Cherokee Country

1 Answer

2001 silverado with ignition problem and no spark from plugs


have if scan first. make sure the cam sensor crank sensor is working . they will cause cranking problems. re place spark plug and wires. your timing could be off or you have distributor problems.

Feb 18, 2009 | 2001 Chevrolet Silverado 1500

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