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11-05-2005, 03:12 PM
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Error code P0306 misfire...
Yesterday the Jeep started running a little rough, hesitating here and there, not so much under acceleration but when just coasting along with the gas pedal partially down. After a little while the check engine light came on. Gave me error code P0306, misfire on cylinder 6.
Two things happened right before this: 1. Topped up the tank (at a place I go to all the time and never had a problem) 2. Had the oil change done at the dealer (got coupons for free oil changes when I got the Jeep). So, I picked up a bottle of that gas tank treatment stuff, and after a while the Jeep started running better. It still does hesitate here and there, but not nearly as much as yesterday. What would you all do? I'm wondering if I should just drive it and if it keeps getting better reset the computer? Or is it possible the dealer did something when doing the service? I know nobody can answer these questions, more or less just wondering if, in this situation, you would chance driving it some more. Thanks. Steve W
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04 TJ X 4.0L 5 spd [color=silver]Bright Silver[/color] Metallic Clear Coat Exterior Paint Club member #18 |
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11-06-2005, 06:15 AM
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#3 |
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Well, I thought of that, but I'm past the 3/36k mark (got 50k on the Jeep), and if it is something like bad gas I'm afraid they'd charge me an arm and a leg since it wasn't their fault...
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04 TJ X 4.0L 5 spd [color=silver]Bright Silver[/color] Metallic Clear Coat Exterior Paint Club member #18 |
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11-06-2005, 07:05 AM
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Registered User
2001 TJ Wrangler
Join Date: May 2002
Location: Minneapolis, Minnesota
Posts: 871
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Quote:
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11-06-2005, 07:55 AM
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I did them around 35K, will pull #6 out and see what it looks like, good thought.
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04 TJ X 4.0L 5 spd [color=silver]Bright Silver[/color] Metallic Clear Coat Exterior Paint Club member #18 |
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11-06-2005, 08:57 AM
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Quote:
A mis-fire, as reported by a code(s) is almost never ignition related (spark plug, wire, cap, rotor, etc) and is almost always fuel delivery related ( injector(s), wiring to injector(s), etc ) Fred
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[b]Base[/b] - '98 Sahara, 4.0L 6 cyl, Auto (swap from 5 sp) [b]Suspension[/b]- 4.0" Procomp Springs + 1 1/4" bl. Rear tri-link. Currie J arms, F&R. Warn hubs with WJ knuckles, custom cross over/hi-steering setup, Currie A/R Sway Bar. HPD30/D44 (rear disk conversion, WJ dual piston caliber conversion in the front); Detroits; 4.56 [b]Misc[/b] - Tera 2wd lo. [b]Tires[/b] - 35x12.50 MT/R's siped on 15x7 Champion Beadlocks. [b]Recovery[/b] - Warn XD9000i |
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11-08-2005, 08:02 PM
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Well, some fresh gas and more dry gas has gotten it to the point where it only hesitates once in a while. I'm betting another tank or two and it will be forgotten...
Except for my wife's Neon. Was fueled up at the same gas station. The mechanic never suspected bad gas, and has replaced the cap and wires, coil, injectors, etc. to the tune of $523. When I called him about the bad gas in the Jeep they drained the fuel tank, found water, topped it up with fresh gas and dry gas and all is well. Now what do I do, go after the gas station that served up the bad gas? It's owned by an elderly couple who I've been getting gas from for years. Will more than likely just suck it up and pay for it...par for the course for me...:-(
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04 TJ X 4.0L 5 spd [color=silver]Bright Silver[/color] Metallic Clear Coat Exterior Paint Club member #18 |
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11-08-2005, 08:20 PM
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I dont know man but it sounds like you are getting hosed if you ask me...
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'97 TJ Sport....I take care of her and she takes care of me -3" Full Traction -33" Kumho MT -Black Steelies -Custom Fabbed Front Bumper -Herculined Tub Comin soon-4.10's, 1" BL/MML, Skids |
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11-08-2005, 09:43 PM
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#9 |
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I had a misfire in cylinder #1 (P0201). I changed the plugs and wires - nothing. Today I changed the fuel injector in that cylinder (almost as easy as changing your oil) and it seems to be fixed...no code and it drives/runs fine.
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[SIZE="4"][CENTER][SIZE="3"][FONT="Verdana"][SIZE="2"][COLOR="Red"]Need 33x12.50x15 spare![/COLOR][/SIZE][/FONT][/SIZE][/CENTER][/SIZE] [COLOR=Black][FONT=Arial][CENTER]'97 TJ - 4cyl - 5spd 3.5" Rubicon Express Super Flex 33x12.50x15 Firestone Destination M/Ts 15x8 Crager D-Hole Rims [/CENTER][/FONT][/COLOR] |
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11-08-2005, 09:48 PM
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Mmmmmm, how 'bout that..... From my post above: Quote:
  Fred
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[b]Base[/b] - '98 Sahara, 4.0L 6 cyl, Auto (swap from 5 sp) [b]Suspension[/b]- 4.0" Procomp Springs + 1 1/4" bl. Rear tri-link. Currie J arms, F&R. Warn hubs with WJ knuckles, custom cross over/hi-steering setup, Currie A/R Sway Bar. HPD30/D44 (rear disk conversion, WJ dual piston caliber conversion in the front); Detroits; 4.56 [b]Misc[/b] - Tera 2wd lo. [b]Tires[/b] - 35x12.50 MT/R's siped on 15x7 Champion Beadlocks. [b]Recovery[/b] - Warn XD9000i |
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