 |
|
12-22-2009, 03:02 PM
|
#1
|
|
Registered User
Join Date: Jan 2007
Location: pc florida
Posts: 408
|
very sluggish and missing after longer drives!
sooo it never has the problem unless i drive 30mins. plus but getting worse
after long drives it wants to get more an more sluggish untill it decides to start missing but only after about 30+ mins of driving.....and under heavy acceleration......sumtimes itll jump to 4000 rmps when i stomp it and jus contuisly miss till i let off the gas and it shifts...
new coil, cps, ecu, cap, rotor ,plugs , wired,.....wat else?
98gc 4.0....no codes~!
__________________
93 wrangler 2.5l, 2in lift shackels, 31's, eagle alloy 186,and a flowmaster 44
98 zj 4.0 straight 6, 4in f<r lift, adj. trak bars, rustys sway bar quik discos, skyjacker shocks, rancho steering stabalizer, 32x11.50 daytons, straight piped, 2 12" pioneers,
I DO ALL MY OWN WORK!
AND YES IM 17 BUT THIS JEEP AINT DADDYS MONEY!
|
|
|
|
12-22-2009, 05:28 PM
|
#2
|
|
R.I.P.
Join Date: Dec 2006
Location: , Pennsylvania
Posts: 19,822
|
look to things that come into the loop when you're out of warm up mode.
start by unplugging your o2 sensor and driving around for a while, you'll get a code but it should tell you one thing or another.
__________________
'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.
|
|
|
|
|
12-22-2009, 06:11 PM
|
#3
|
|
Registered User
Join Date: Jan 2007
Location: pc florida
Posts: 408
|
took her for a ride without my o2 sensor hooked up and still messing up and still very sluggish to get up to speed
__________________
93 wrangler 2.5l, 2in lift shackels, 31's, eagle alloy 186,and a flowmaster 44
98 zj 4.0 straight 6, 4in f<r lift, adj. trak bars, rustys sway bar quik discos, skyjacker shocks, rancho steering stabalizer, 32x11.50 daytons, straight piped, 2 12" pioneers,
I DO ALL MY OWN WORK!
AND YES IM 17 BUT THIS JEEP AINT DADDYS MONEY!
|
|
|
|
|
12-22-2009, 06:35 PM
|
#4
|
|
I, Soldier.
Join Date: Mar 2005
Location: Raleigh, North Carolina
Posts: 1,096
|
Are the shifting points off, delayed, or not at all in the top gears? Rough idling? Won't go when you stomp on it and feels like it's sputtering? Reaching 4000 when stomping on the gas is not part of the diagnostics that count, but the shifting part is. How old is the TPS?
|
|
|
|
|
12-23-2009, 05:46 AM
|
#5
|
|
Registered User
Join Date: Feb 2003
Location: Queens, N.Y.
Posts: 65
|
When was the last tiime you changed the fuel filter? I've had issues with clogged fuel filters on several different cars and it sounds similiar to your situation. If that's the case your fuel pump would be working overtime and shortening it's life.
__________________
1998 Jeep Wrangler Sport loaded with TONS of extras!_
4 liter 6cyl, 5speed but thats just where it starts._
Full Borla stainless exhaust (header and cat back)
Rock-it intake with K&N air filter
Hi Capacity 3 core radiator
Steering box skid plate
Bullet proof bumpers FRONT AND REAR
4" Skyjacker Double flex lift
Currie anti-rock sway bar
33" Super Swamper Radials on AR767s
|
|
|
|
|
12-23-2009, 06:47 AM
|
#6
|
|
Registered User
Join Date: Jan 2007
Location: pc florida
Posts: 408
|
iv recently (within 6 months) changed my tps.....
as for ideling sometimes its smooth as i think itll get and outher times its like its like a pulsing idel
also forgot to add sumtimes when im coming to a stop it will cause my rpms to drop off but they always make there way back up shortly?
and iv got a 98 gc with tells me its in the tank????....iv checked for an external fuel filter but none for me to find?.....also iv read that with an internal filter u cant do nothing about it cuz its part of the fuel pump???
sooo how would it be cleaned?
__________________
93 wrangler 2.5l, 2in lift shackels, 31's, eagle alloy 186,and a flowmaster 44
98 zj 4.0 straight 6, 4in f<r lift, adj. trak bars, rustys sway bar quik discos, skyjacker shocks, rancho steering stabalizer, 32x11.50 daytons, straight piped, 2 12" pioneers,
I DO ALL MY OWN WORK!
AND YES IM 17 BUT THIS JEEP AINT DADDYS MONEY!
|
|
|
|
|
12-23-2009, 07:33 AM
|
#7
|
|
Registered User
Join Date: Jul 2009
Location: Frederick
Posts: 348
|
I have a 99 WJ V-8. I had very similar problems. I did the following: 1) seafoamed it. 2) changed the plugs and (because I had a misfire code after 4 months of problems) changed two coil packs. 3) I had a faulty speed sensor on the transmission. 4) Changed the fuel filter. Seems to be fine now but time will tell...
The speed sensor and coil packs were the real culprits. I threw some other parts at it with no change (TPS, MAP) but they were probably due anyway.
|
|
|
|
|
12-23-2009, 11:28 AM
|
#8
|
|
Registered User
Join Date: Jan 2007
Location: pc florida
Posts: 408
|
its mising after a long drive but its always sluggish.....would the speed sensor cause a miss?
__________________
93 wrangler 2.5l, 2in lift shackels, 31's, eagle alloy 186,and a flowmaster 44
98 zj 4.0 straight 6, 4in f<r lift, adj. trak bars, rustys sway bar quik discos, skyjacker shocks, rancho steering stabalizer, 32x11.50 daytons, straight piped, 2 12" pioneers,
I DO ALL MY OWN WORK!
AND YES IM 17 BUT THIS JEEP AINT DADDYS MONEY!
|
|
|
|
|
|
>
very sluggish and missing after longer drives!
