couple q's about a 99 GT Help please!
#1
couple q's about a 99 GT Help please!
I have a 99 GT manual. and i love the car but have a couple questions. Sometimes when i floor it around a turn sometimes just a slight turn (usually when i turn right) only the right tire will spin>? Most the time both will spin and if i launch in a straight line or do a brake stand both spin, so should i be worried or is that one wheel wonder normal? one other little thing is that at ide it seems fine but every once in a while when idileing the rpms will climb up a little bit and go back down if your just sittin there ittll keep doing it. idle normal for a while then up and back down normal for a while. This seems like a great forum i hope i can get a little help here. So thanks in advance, Holmes
Im from Menominee, MI im new to these forums and the mustang community and thought i would introduce myself, just call me holmes, ill attach a pic of my stang that i love so much!
Im from Menominee, MI im new to these forums and the mustang community and thought i would introduce myself, just call me holmes, ill attach a pic of my stang that i love so much!
#3
A posi doenst always make both tires spin so when you go around a corner this is very evident on right turns when you give it gas the inside tire (right tire will spin). Its normal for the operation of a posi.
#5
The Ford Traction-Lock doesn't have real high breakaway torque when new, so once the clutches wear a bit it only gets worse. I'll bet the car will still get loose if you get on the throttle turning left; it's all due to torque and how it affects the chassis. That's the whole reason you need a posi in the first place; the torque reaction actually pulls weight off the right rear and transfers it to the left rear.
#6
yeah if i get on it to the left it always slides sideways, and it usually does for the right too but sometimes only the right will spin when going right... i figured this was pretty much normal but just wanted to be sure. Is my idle prob affecting anything worth worrying about? thanks
#7
Some idle fluctuation is normal as the car is correcting itself. It is hard to say from your post if this is a problem or not. If your idle increases and decreases as your a/c comes on and off, this is normal for example. If the car is stalling, this is not. Overall, the idle should not hunt up and down.
You car should idle a bit high when cold-starting....say around 1100 rpms. The, it should dropto below 900 when warm.
Lots of things can cause an idle problem:
1 - Vaccum leak.
2 - Dirty IAC or problematic IAC
3 - Bad TPS (throttle position sensor).
4 - O2 sensor issues
5 - Incorrectly set throttle body or throttle body not closing correctly.
The biggest culprit is usually a dirty IAC (Idle Air Controllers). They are easy to clean. Just remove the two screws and pop it off. Soak it with some carb cleaner and then re-install.
The other common problem is after-market throttle bodies, plenums, and cold air kits. If you car has one of these, chances are the only way to fix it is with a dyno tune. Sometimes these mods cause these issues and you either just live with it, or get it tuned.
Assuming that the idle problem is not the result of a major engine problem (which I doubt), it won't affect performance.
You car should idle a bit high when cold-starting....say around 1100 rpms. The, it should dropto below 900 when warm.
Lots of things can cause an idle problem:
1 - Vaccum leak.
2 - Dirty IAC or problematic IAC
3 - Bad TPS (throttle position sensor).
4 - O2 sensor issues
5 - Incorrectly set throttle body or throttle body not closing correctly.
The biggest culprit is usually a dirty IAC (Idle Air Controllers). They are easy to clean. Just remove the two screws and pop it off. Soak it with some carb cleaner and then re-install.
The other common problem is after-market throttle bodies, plenums, and cold air kits. If you car has one of these, chances are the only way to fix it is with a dyno tune. Sometimes these mods cause these issues and you either just live with it, or get it tuned.
Assuming that the idle problem is not the result of a major engine problem (which I doubt), it won't affect performance.
#8
alright thanks, yeah the idle issue isnt bad at all... i think i have a bad 02 sensor also so thats prob.... today when driving even in the wet i couldnt get it to do a doughnut turning right just one wheel spinning but goin to the left both wheels would spin no prob. even on dry pavement, on dry pavement just punching it in a straight line both wheels spin and a brake tourqe when the roads where slippery it pulled posi. so i should be fine right?
Thread
Thread Starter
Forum
Replies
Last Post