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2002 Chevrolet Blazer


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casmith12
New User

Dec 3, 2009, 4:13 AM

Post #1 of 8 (1623 views)
2002 Chevrolet Blazer Sign In

I have a 2002 Blazer and it is really hard to get started, once started you can't take your foot off of the gas or it will die. Once you get going, if you get up to approx. 50 mph it runs fine? It's had a miss for a while and been running a little rich, I suspected it needed plugs. Anyone have any ideas????

Thanks


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 3, 2009, 5:59 AM

Post #2 of 8 (1616 views)
Re: 2002 Chevrolet Blazer Sign In

Is the check engine light coming on at all?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



casmith12
New User

Dec 3, 2009, 8:06 AM

Post #3 of 8 (1611 views)
Re: 2002 Chevrolet Blazer Sign In

No, the check engine light is not on at all. I took one of the plugs out and looked at it, it's pretty burnt. Is it possible that this is the root of all of my problems?>


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 3, 2009, 9:08 AM

Post #4 of 8 (1607 views)
Re: 2002 Chevrolet Blazer Sign In

Not likely..........

First remove the EGR valve and verify that the pintle is fully seated, if it is, you may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Dec 3, 2009, 9:09 AM)


casmith12
New User

Dec 6, 2009, 3:03 PM

Post #5 of 8 (1591 views)
Re: 2002 Chevrolet Blazer Sign In

I left something out in the original post. When I first attempt to start it, I hear an arcing sound and the engine doesn't fire at all. If I continue trying I can get it to fire and all of the other problems are the same as listed as above. I put new plugs and plug wires in it today, and that didn't fix anything......could it still be the Idle control?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 6, 2009, 3:11 PM

Post #6 of 8 (1584 views)
Re: 2002 Chevrolet Blazer Sign In

I have no idea what an "arcing sound" means.
The advice I gave you was for unstable idle.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Dec 6, 2009, 3:21 PM

Post #7 of 8 (1580 views)
Re: 2002 Chevrolet Blazer Sign In

>>When I first attempt to start it, I hear an arcing sound <<
You may want to remove the engine cover (dog house) to see if you can determine where this noise is coming from?
You can use a spray bottle with water and spray the coil/plug wires/cap, ect.
Loren
SW Washington


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 6, 2009, 3:38 PM

Post #8 of 8 (1578 views)
Re: 2002 Chevrolet Blazer Sign In

OH, you mean you hear a spark jumping. I didn't get what you meant.

Yes, definitely try to get it dark in there and crank the engine and see if you can see where the spark is jumping. You may have a cracked cap or cracked coil tower.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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