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EC_Dually
 Post subject: ok i need help......
New postPosted: Thu Dec 31, 2009 11:38 pm 
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2000 Chevrolet Crew Cab Dually
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Joined: Wed Jun 20, 2007 6:20 pm
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Location: panama city beach,florida
 
ok guys i am at my whits end.. let me paint the picture for you...
teh wifes ride is a 95 chevy blazer with 4.3 vortech engine.. for a while it has been running like crap and sputtering really bad and running rich.. and when your driving it is real hesitant, and you can step on the gas hard and it will blow a big ass plume of black smoke, well here recently it has gotten worse on the hesitation and sputtering, well when me and my father in law changed the oil, cause i got a low oil presure reading the pan was so full of gas and oil that it took to 5 quart pans to get it all out of the truck.. not to long ago i took it to a shop to hook it up to a computer and he said he could not get a accurate reading but he was 90%sure it was something under the plenum that controls the amount of fuel to the motor, cause he listened to the way it was running and said that it is dumping mass amount of fuel to the cylinders and cant burn it all off, my question is what is it called and about how much is it to replace nd is it a easy fix... money is super tight right now
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EC_Dually
 Post subject: Re: ok i need help......
New postPosted: Thu Dec 31, 2009 11:41 pm 
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2000 Chevrolet Crew Cab Dually
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Joined: Wed Jun 20, 2007 6:20 pm
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Location: panama city beach,florida
 
i dont think it is the injectors, but something along the lines of a fuel management relay or something
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EC_Dually
 Post subject: Re: ok i need help......
New postPosted: Fri Jan 01, 2010 12:18 am 
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2000 Chevrolet Crew Cab Dually
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13550

Joined: Wed Jun 20, 2007 6:20 pm
Posts: 1380
Location: panama city beach,florida
 
does the fuel pressure regulator sound about right, located under the plenum
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SkeletonCrew
 Post subject: Re: ok i need help......
New postPosted: Fri Jan 01, 2010 12:35 am 
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Joined: Fri Aug 07, 2009 11:16 pm
Posts: 97
Location: Hillsboro, Oregon
 
It sounds like you are on the right track. If you haven't found this info yet, there is some good info here:

http://www.howstuffinmycarworks.com/Fue ... lator.html


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EC_Dually
 Post subject: Re: ok i need help......
New postPosted: Fri Jan 01, 2010 12:49 am 
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Rides
2000 Chevrolet Crew Cab Dually
Status Points Earned
13550

Joined: Wed Jun 20, 2007 6:20 pm
Posts: 1380
Location: panama city beach,florida
 
that sounds exactly what my problem is, and i did some more research on this and this would also be the cause of the excess fuel being dumped in the oil pan, since it was over filling the injectors,...
thanks abunch for the link, i saved it in my favorites, now just goota find 50 bucks to get another reg for it , looks to be a pretty simple instal;l.. just time comsuming moving the stuff outta the way ..
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EC_Dually
 Post subject: Re: ok i need help......
New postPosted: Fri Jan 01, 2010 3:22 pm 
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Rides
2000 Chevrolet Crew Cab Dually
Status Points Earned
13550

Joined: Wed Jun 20, 2007 6:20 pm
Posts: 1380
Location: panama city beach,florida
 
hey crew, thanks a ton, i replaced the fuel pressure regulator, and OMG the blazer came to life, it is puring like a kitten now, changed the plugs also and oil and filter, the pass side plugs were all but foulded out and when we took the plenum off the inside reaked of fuel and there was fuel just sittiing in there adn you could see where it was just leaking out of the regulator.. swapped it out, changed plugs new oil, fired it up and it just purrrrrrred, the exhaust didnt smell like gas anymore and no black smoke, then it started to puff a lil out when we reved it up, but considering how long it has been running like this there was and is a lot of carbon build up in the exhaust took it out on the road and it has its horsepower back, and when under under heavy throttle, it was clering out the exhaustand when you let off it just ran so good... and no codes thrown up now on the ecm, overall cosrt me 85 bucks to replaced all parts plus oil.. but saved me and 3 c notes at the repair shop...
thanks for the insight.
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SkeletonCrew
 Post subject: Re: ok i need help......
New postPosted: Fri Jan 01, 2010 9:24 pm 
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Joined: Fri Aug 07, 2009 11:16 pm
Posts: 97
Location: Hillsboro, Oregon
 
Glad the info helped! I always try to assist whenever I can!

Happy New Year!


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