I need sugestions for a problem I am having.
Registered User
Joined: Mar 2009
Posts: 42
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From: Daytona Beach, Fl
my truck had the same problem and i cleaned my tb really good and ran a can of seafoam through it and it cleared it up perfectly, give that a shot...
02 dakota cc 3.9L
flowmaster duals
"homemade" CAI
V8 TB
MSD Ignition
02 dakota cc 3.9L
flowmaster duals
"homemade" CAI
V8 TB
MSD Ignition
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Registered User
Joined: Mar 2009
Posts: 12
Likes: 0
when you do your tune up, clean the MAF sensor at the same time.
Disconnect the battery for a good 20 minutes and let the computer caps bleed down. The computer will have to relearn your driving conditions so make sure you do not have premium fuel in the truck for the first tank of gas.
If you have high mileage you may have some compression issues, built up carbon will raise the compression and the engine knock sensor will reduce the timing to compensate. Or you could have low compression due to wear and again, computer compensation.
no way to tell until you replace the wearable parts first.
Plugs, wires, cap, rotor, clean MAF, air filter, and spray out the throttle body.
Disconnect the battery for a good 20 minutes and let the computer caps bleed down. The computer will have to relearn your driving conditions so make sure you do not have premium fuel in the truck for the first tank of gas.
If you have high mileage you may have some compression issues, built up carbon will raise the compression and the engine knock sensor will reduce the timing to compensate. Or you could have low compression due to wear and again, computer compensation.
no way to tell until you replace the wearable parts first.
Plugs, wires, cap, rotor, clean MAF, air filter, and spray out the throttle body.
Thank you for all of the suggestions an help.
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Registered User
Joined: Mar 2009
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I will clean up the throttle body and see if it works, the only reason I have not done that before is after a close inspection I did not see any reason but maybe there is something there. What is seafoam i have never heard of that.
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Registered User
Joined: Mar 2009
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i used to have a kinda rough idle. it didn't bother me at all and it wasn't interfering with performance or anything. one thing that helped was when i took off my TB and just scrubbed it really clean. other things that helped were when i did my new TB and and a MSD ignition blaster coil. between those 3 things there is a really noticeable difference? also, what plugs are you running? i know some (don't recall off hand but i think its the platinum ones) that these magnum motors don't like.
Wow that would suck if I put the wrong kind of plugs in, I am not 100% sure but If i remember right I put in Bosch Platinum plugs.
But the problem existed before the plugs and has continued after the new plugs, the only noticeable change is when I went to premium fuel.
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Registered User
Joined: Mar 2009
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I agree completely and I hate paying the extra price for premium but it eliminates well almost eliminates the problem I am having with this truck, and that is worth the extra price. BTW if you are having the same problem I am, you have to use premium every tank full and it takes several fills before there is a huge difference.
Last edited by jared7209; Mar 8, 2009 at 01:48 PM.
Champion
Joined: Jun 2008
Posts: 3,300
Likes: 2
From: Plattsburgh, NY
Seafoam goes through your fuel system and can really help clean up any gunk or carbon build up.
The MAF sensor is your Mass Air Flow sensor. Im bad at explaining things so wait for someone else to explain how it works.
The MAF sensor is your Mass Air Flow sensor. Im bad at explaining things so wait for someone else to explain how it works.
Record Breaker
Joined: Dec 2007
Posts: 1,434
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From: CHICAGO
I agree completely and I hate paying the extra price for premium but it eliminates well almost eliminates the problem I am having with this truck, and that is worth the extra price. BTW if you are having the same problem I am, you have to use premium every tank full and it takes several fills before there is a huge difference.
Rookie
Joined: Feb 2009
Posts: 63
Likes: 1
From: Chicago
I would think you do regular maintenance on your truck besides pump it full of premium fuel.