Hesitation in acceleration

Got a problem with your FTO? ask about it here

Moderators: IMC, Club Staff

Post Reply
User avatar
evoman
Grease Monkey
Posts: 315
jedwabna poszewka promocja
Joined: Fri Oct 24, 2008 5:00 pm
Location: Castle Hill, NSW

Hesitation in acceleration

Post by evoman »

Just recently I have noticed that when my car is cold, it has a hesitation between about 1.3-1.6k revs.(actually I have no idea when it is...but definitely low in the rev range)

It's really hard to describe, but at a linear throttle input, there is momentarily no response before it just suddenly all comes back with a bit of a sudden gush. It is noticeable in the exhaust note, and would appear to the outside as though I have just made had a really sharp jab at the throttle, which I haven't.

Any suggestions on what might be causing this?

It was serviced quite recently so should have fresh fluids etc.
silverGPX
9.5"
Posts: 6793
Joined: Tue Oct 13, 2009 5:00 pm

Re: Hesitation in acceleration

Post by silverGPX »

Mine does it when im driving around in carparks. i have no idea!!
User avatar
payaya
Oldtimer
Posts: 3670
Joined: Sat Sep 06, 2003 5:00 pm

Re: Hesitation in acceleration

Post by payaya »

TPS.
silverGPX
9.5"
Posts: 6793
Joined: Tue Oct 13, 2009 5:00 pm

Re: Hesitation in acceleration

Post by silverGPX »

Can you clean it or something?
User avatar
payaya
Oldtimer
Posts: 3670
Joined: Sat Sep 06, 2003 5:00 pm

Re: Hesitation in acceleration

Post by payaya »

Adjust it. Do a search.
st3venn
Newbie
Newbie
Posts: 17
Joined: Sun Jun 13, 2010 2:42 am
Location: Sydney

Re: Hesitation in acceleration

Post by st3venn »

umm whats TPS ? ...
User avatar
I8A4RE
QLD Coordinator
Posts: 9594
Joined: Mon Aug 28, 2006 5:00 pm
Location: BOOSTIN in front of you
Contact:

Re: Hesitation in acceleration

Post by I8A4RE »

Throttle position sensor.

The hesitation could be any number of things. Anything ftom leads/plugs to fuel filter. When was your last service and what was done?
CHRISTIANITY: The belief that a cosmic Jewish Zombie who was his own father can make you live forever if you symbolically eat his flesh and telepathically tell him you accept him as your master, so he can remove an evil force from your soul that is present in humanity because a rib-woman was convinced by a talking snake to eat from a magical tree...
User avatar
evoman
Grease Monkey
Posts: 315
Joined: Fri Oct 24, 2008 5:00 pm
Location: Castle Hill, NSW

Re: Hesitation in acceleration

Post by evoman »

Thought I would update this and let people know that the issue appears to have been the fuel filter. I tried everything to replicate the problem this morning but not a sign of it anymore. The car feels so much smoother I wonder how I ever got used to it.

Other symptoms were when I was in gear with my foot off the throttle slowly (and I mean rather slowly) going down a slope, the car would not always continue smoothly and would sometimes hold up almost as though I was applying the brakes or the A/C had kicked in.

Doing the same thing today on the way home from work it accelerates and decelerates smoothly exactly as you would expect.
Post Reply