throttle hesitation
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Joined: Jun 2016
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From: Central Podunk
throttle hesitation
A new owner of a 996. Last week I pulled the air box off to take a look at the filter and placed the housing back on. I thought I got nice seals all the way around and tightened the clasps so that they were firm up not too tight. I am driving the car now and notice slight hesitation when I press the throttle in first or second gear. Couple of questions.
1. Its getting colder here in PA. Although the car is always garaged is the weather affecting the throttle response at all?
2. the hesitation seems to go away after a few minutes of driving.
I don't know if its always been this way or I am hyper sensitive now and this is always the way its been because I've started to fiddle around the car a little bit.
thoughts?
1. Its getting colder here in PA. Although the car is always garaged is the weather affecting the throttle response at all?
2. the hesitation seems to go away after a few minutes of driving.
I don't know if its always been this way or I am hyper sensitive now and this is always the way its been because I've started to fiddle around the car a little bit.
thoughts?
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Joined: Sep 2006
Posts: 19,031
Likes: 268
From: Bentonville, AR
A new owner of a 996. Last week I pulled the air box off to take a look at the filter and placed the housing back on. I thought I got nice seals all the way around and tightened the clasps so that they were firm up not too tight. I am driving the car now and notice slight hesitation when I press the throttle in first or second gear. Couple of questions.
1. Its getting colder here in PA. Although the car is always garaged is the weather affecting the throttle response at all?
2. the hesitation seems to go away after a few minutes of driving.
I don't know if its always been this way or I am hyper sensitive now and this is always the way its been because I've started to fiddle around the car a little bit.
thoughts?
1. Its getting colder here in PA. Although the car is always garaged is the weather affecting the throttle response at all?
2. the hesitation seems to go away after a few minutes of driving.
I don't know if its always been this way or I am hyper sensitive now and this is always the way its been because I've started to fiddle around the car a little bit.
thoughts?
The car is I take it "new" to you? My advice would be to do an E-gas calibration.
The steps should be in the owners manual. From my memory: With your foot off the gas pedal throughout this procedure with the key off turn the key to the 1st position. Leave the key on for at least 60 seconds. Turn the key off for at least 10 seconds. The next time you start the engine the calibration is done.
Be sure the gasoline is not stale. Often a used car when on the market doesn't get driven much and if the car remains unsold for a while the gas can get stale.
Also, the seller may not fill up with premium but instead decides to play it cheap and just fill up with regular. In some areas of the country there is the switch from summer blend to winter blend. Running summer blend gasoline in "winter" (colder weather) can cause some driveability problems.
There are other possible explanations. Could be the engine/fuel system needs a Techron treatment. There is the question of the condition of the plugs and coils too.
Another possible explanation can be a bad MAF. A bad coolant temp sensor can supply the wrong temperature to the DME and the engine may not be fueled appropriately for its real temperature.
Do the E-Gas calibration first. Be sure the fuel is fresh and the right octane. Without knowing the history of the car I'd be tempted to try a bottle or two of Techron. However, if the plugs are due to be changed (or possibly past due) I'd have these done regardless. At the same time the tech -- or if you do this work yourself, you -- can examine the coils. If any are found suspect my advise is to replace all 6.
