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Old 12-08-2010, 11:13 PM   #1
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Drives rough untill warm

My 99 sport 4.0 drives rough almost like a terrible stick driver learning when it not fully warmed up. Just did a tune up and it was fine before that. What should I check.

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Old 12-09-2010, 12:49 AM   #2
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My 99 sport 4.0 drives rough almost like a terrible stick driver learning when it not fully warmed up. Just did a tune up and it was fine before that. What should I check.
How cold is it where ur at?

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Old 12-09-2010, 12:56 AM   #3
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My 99 sport 4.0 drives rough almost like a terrible stick driver learning when it not fully warmed up. Just did a tune up and it was fine before that. What should I check.
what do you mean drive like a stick shift? is the transmission acting up or what?what plugs did you put in?
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Old 12-09-2010, 01:02 AM   #4
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It's only like 40 degrees. A shop did the tune up. They did plugs wires and the whole distributor, and oil change.
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Old 12-09-2010, 01:03 AM   #5
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Yeah it's stick but it's always been fine up until the tune up it drives like shit till the engine is at temp.
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Old 12-09-2010, 01:04 AM   #6
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Yeah it's stick but it's always been fine up until the tune up it drives like shit till the engine is at temp.
well you need to describe how it is like shit...Im pretty sure nobody can drive a shit.
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Old 12-09-2010, 01:06 AM   #7
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well you need to describe how it is like shit...Im pretty sure nobody can drive a shit.
Lolololololol
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Old 12-09-2010, 01:27 AM   #8
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It wants to die when you shift out out of first gear. Almost like a sputter.
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Old 12-09-2010, 04:07 AM   #9
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Could be some freezing or air in your gas line. Stop off at Auto Zone and grab a bottle of STP fuel additive. It's cheap, and worth a try.
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Old 12-09-2010, 05:41 PM   #10
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when i first start to drive my jeep it's hard to put in to 2nd, and sometimes first. But all the other gears are fine. The temp where i live in the 20's in the morning and around the 30's in the afternoon. I let it warm up for about 10 minutes before i go to school i have been thinking I am having a tranny problem cuz 2nd gear is really bad i have to put all the way in nutral before shifting into 2nd or it will be difficult or just grind.
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Old 12-09-2010, 05:52 PM   #11
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Sounds like you have to thick of trans fluid (gear lube). It's not letting your synchronizers spin properly. Water could be freezing in the throw out bearing lines. Did you change any of these fluids?
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Old 12-09-2010, 07:12 PM   #12
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no the trans fluid is only a year old, i am going to drain it and put some new fluid in it soon. I hope that will solve my problem.
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Old 12-09-2010, 08:13 PM   #13
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Sounds like you have to thick of trans fluid (gear lube). It's not letting your synchronizers spin properly. Water could be freezing in the throw out bearing lines. Did you change any of these fluids?
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no the trans fluid is only a year old, i am going to drain it and put some new fluid in it soon. I hope that will solve my problem.
he's saying its to thick not old. if it was to thick then in the colder weather we're getting now it will get even thicker. what he's saying sound really possible to me.
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Old 12-09-2010, 08:33 PM   #14
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It's been in the teens and 20's here the last couple of days. Hence, lately my 1st start of the day makes the (new) serpentine belt complain and shifting in 1st and 2nd touchy. Once everything warms up to operating temps, no problems for the rest of the day.

When it's touchy, try double clutching if it won't slip/push into gear w/o chattering. It helps me...YMMV.
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Old 12-09-2010, 08:53 PM   #15
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You said it was fine befor the tune up ?
If so do you know the people at the shop you took it to ?
I've watched guy's cause problems to cars so the people come back..
Plugs =what did they put in and what gap ?
wires =what type did you get and size ?
Distributor =what kind where from ?
After it warms up it runs fine just like befor you had a tune up ?
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Old 12-09-2010, 10:34 PM   #16
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It was precision auto tune right down the street. I did not ask any questions, nor do I know what they put in. I'm gonna take it back to them and make them check it out.
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Old 12-09-2010, 11:10 PM   #17
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well you need to describe how it is like shit...Im pretty sure nobody can drive a shit.
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Old 12-10-2010, 10:15 PM   #18
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^ I'm pretty sure the first time it snows and sticks, most folx around my neck of the woods will drive like sh*t! :o
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Old 12-16-2010, 12:04 PM   #19
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my 2000 with the 5 sp does the same thing with the first and second gear not as cold here but low 30s 0n a bad night, im going to be doing a tranny service(flush,filter,fill) what is the best wieght to go with for the cold weather.
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Old 12-16-2010, 05:12 PM   #20
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My 04 does the same thing in 1st and 2nd when cold. Once it warms up it is much better.

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