[trutrep]

My Intrepid runs good and I can't really complain, but I do wonder what can be done to improve my low-end throttle response. I put the accelerator down and sometimes it takes off real good, but more often than not it takes a second (my RPMs rise) but the car doesn't really respond to it. Any insight would be appreciated...

 

[Si]

The response can be a many things.

1)Temp, if the Temp of the air is v.cold
your motor will be more purky..

2)Time for a new Throttle Position sensor?

3)Changing gas brands/octane, but thats
really a remote thing

4)Give the motor time to warm up, Its not
recommended to give her stick when you
have just started her up.

5)Spark plugs & Injectors dirty? Put some
Injector cleaner in?

Thats about all I can think of at this point, no doubt the other guys will have other tips.. hope the above helps.

Si

 

[brun064]

The torque converter doesn't really lock up until 2500 rpms. Thats why it kicks in better when its around 2500. But theres not much you can do to make it lock up faster though.

 

[p3]

Originally posted by trutrep:
My Intrepid runs good and I can't really complain, but I do wonder what can be done to improve my low-end throttle response. I put the accelerator down and sometimes it takes off real good, but more often than not it takes a second (my RPMs rise) but the car doesn't really respond to it. Any insight would be appreciated...

i have the same prob as you. most of my reason is my open exhaust. i dont have much backpressure, so its not peppy till about 2000RPM...

 

[trutrep]

Originally posted by Si:
The response can be a many things.

1)Temp, if the Temp of the air is v.cold
your motor will be more purky..

2)Time for a new Throttle Position sensor?

3)Changing gas brands/octane, but thats
really a remote thing

4)Give the motor time to warm up, Its not
recommended to give her stick when you
have just started her up.

5)Spark plugs & Injectors dirty? Put some
Injector cleaner in?

Thats about all I can think of at this point, no doubt the other guys will have other tips.. hope the above helps.

Si

Thanks for the insight. I have noticed that my trep runs with more pep when she's been given time to warm up. I have also noticed that at night when the air is cooler she runs with a slight but noticable increase in pep. I currently use 89 octane gas... Should I switch to the 92 octane? What if I went back to the 89 later, would that hurt anything? Thanks.

 

[Lafrad]

92 doesnt do jack. I just tried that theory. 92 doesn't do much for our cars... the enigines are tuned for 89. One thing I do notice... 87 gets better gas mileage on the hiway for me... but it runs crappier in town? is that possible anyone?

 

[jnutz]

The early high compression motors were programmed for 89 octane. I believe it was 93-95. When they switched to a lower compression motor they set it up for 87. So yes it does make sense that 87 would get better gas mileage on the highway.

 

[trutrep]

Originally posted by jnutz:
The early high compression motors were programmed for 89 octane. I believe it was 93-95. When they switched to a lower compression motor they set it up for 87. So yes it does make sense that 87 would get better gas mileage on the highway.

I have a 96 and the manufacturer's label in the gas compartment states "89 octane recommended"...