2000 EXCURSION WILL NOT IDLE

MY WIFES 2000 EXCURSION WILL NOT HOLD IDLE. IT WILL STALL WHEN SHE LETS OFF ACC. PEDAL. ANY IDEAS?

[pcruz]

for a quick fix....simply adjust the idle speed screw located on the throttle body.

[dieselman]

Replace the IAC, idle air controller on the TB. If problem still persists replace the TPS, throttle position sensor as well.

[camomann]

had the same problem with my 2000
clean the throtle body

[CrazyCobraManTim]

Three items that can cause stalling at idle. From easiest & cheapest up they are:

1. dirty PVC valve....remove, clean and / or replace, and reinstall.

2. dirty / defective idle air control valve. About $50-100 to purchase, and is located at the rear of the throttle body. Took me about 2 hours due to trying to climb into the back of the engine bay (while not scratching things or breaking lines, etc). Only two 5/16 screws, and the problem was gone.

3. Cleaning Throttle body - alittle more money if the others didn't solve the problem, but may do more good for the overall fuel economy / drivability.

Hope those help and anyone else can chime in with other suggestions / findings.

Tim

[microsfoftxpuser21]

i'd do tps first then iac valve most common but look or listen for air leaks u might have a rotted hose