I have a 96 Jeep Cherokee that idles too low. It started about a week
ago. The idle speed dropped about 3k rpm. I have to give the car a
little gas at stops so it won't die. Can this be fixed by adjusting
the idle set screw or is this something I should have checked out by a
mechanic.

Thanks.

 

teegardent@comcast.net did pass the time by typing:
> I have a 96 Jeep Cherokee that idles too low. It started about a week
> ago. The idle speed dropped about 3k rpm. I have to give the car a
> little gas at stops so it won't die. Can this be fixed by adjusting
> the idle set screw or is this something I should have checked out by a
> mechanic.

Although there is a set screw on the throttle body, it's not for adjusting
the low idle point, just for setting the butterfly valve so it doesn't wear
a groove into the throttle body. Grab a can of spray cleaner that's safe
for O2 sensors and spray the idle air passage, the pintle in there is probably
sticking.

A little more reading.
http://www.revbeergoggles.com/tb/tb.html

--
DougW

 

teegardent@comcast.net did pass the time by typing:
> I have a 96 Jeep Cherokee that idles too low. It started about a week
> ago. The idle speed dropped about 3k rpm. I have to give the car a
> little gas at stops so it won't die. Can this be fixed by adjusting
> the idle set screw or is this something I should have checked out by a
> mechanic.

Although there is a set screw on the throttle body, it's not for adjusting
the low idle point, just for setting the butterfly valve so it doesn't wear
a groove into the throttle body. Grab a can of spray cleaner that's safe
for O2 sensors and spray the idle air passage, the pintle in there is probably
sticking.

A little more reading.
http://www.revbeergoggles.com/tb/tb.html

--
DougW

 

teegardent@comcast.net did pass the time by typing:
> I have a 96 Jeep Cherokee that idles too low. It started about a week
> ago. The idle speed dropped about 3k rpm. I have to give the car a
> little gas at stops so it won't die. Can this be fixed by adjusting
> the idle set screw or is this something I should have checked out by a
> mechanic.

Although there is a set screw on the throttle body, it's not for adjusting
the low idle point, just for setting the butterfly valve so it doesn't wear
a groove into the throttle body. Grab a can of spray cleaner that's safe
for O2 sensors and spray the idle air passage, the pintle in there is probably
sticking.

A little more reading.
http://www.revbeergoggles.com/tb/tb.html

--
DougW