# Sluggish

**URL:** <https://community.cartalk.com/t/sluggish/19017>\
**Category:** Maintenance/Repairs\
**Created:** [September 2, 2008, 6:12pm UTC](https://community.cartalk.com/t/sluggish/19017 "2008-09-02T18:12:15Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![hbwizard](https://avatars.discourse-cdn.com/v4/letter/h/b5a626/32.png) [@hbwizard](https://community.cartalk.com/u/hbwizard)\
**Post date:** [September 2, 2008, 6:12pm UTC](https://community.cartalk.com/t/sluggish/19017/1 "2008-09-02T18:12:15Z")

</div>

I have 1999 pontiac grand prix GTP, in the morning when the car is cold it will perform fine, until it warms up and than when accelarating it is very slugish, however if I maintaine same speed or increase speed ever so slightly it will run smooth and also it idle great. any ideas?

---

<div class="post-metadata">

**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [September 2, 2008, 6:40pm UTC](https://community.cartalk.com/t/sluggish/19017/2 "2008-09-02T18:40:18Z")

</div>

When was the last time that the fuel filter was replaced?  
Have you had the pressure of the fuel pump checked?

A fuel filter that becomes progressively more and more obstructed with debris will strain a fuel pump to the point of failure.

---

<div class="post-metadata">

**Author:** ![hbwizard](https://avatars.discourse-cdn.com/v4/letter/h/b5a626/32.png) [@hbwizard](https://community.cartalk.com/u/hbwizard)\
**Post date:** [September 2, 2008, 8:44pm UTC](https://community.cartalk.com/t/sluggish/19017/3 "2008-09-02T20:44:47Z")

</div>

never had replaced, dont you think it might be plugs/wires ir fuel injections?

---

<div class="post-metadata">

**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [September 2, 2008, 9:35pm UTC](https://community.cartalk.com/t/sluggish/19017/4 "2008-09-02T21:35:56Z")

</div>

Perhaps it might be badly fouled spark plugs.  
When was the last time that you replaced the spark plugs?

But, then again, on a car that is at least 9 years old, if it has not been maintained properly the possibilities are numerous.

I would start by bringing the car up to date on any and all of the maintenance procedures that you might have skipped over the past 9 years.

---

<div class="post-metadata">

**Author:** ![hbwizard](https://avatars.discourse-cdn.com/v4/letter/h/b5a626/32.png) [@hbwizard](https://community.cartalk.com/u/hbwizard)\
**Post date:** [September 2, 2008, 9:53pm UTC](https://community.cartalk.com/t/sluggish/19017/5 "2008-09-02T21:53:05Z")

</div>

I think you are right, thx