weird idle problem

[powerranger262]

SO when I went to start my truck yesterday, it turned over and immediately revs up to 2500-3000Rpms and just sits there for about 30 seconds and then slowly, and I mean slowly, starts to drop. It does this on cold start ups and warm start ups.
I put a new TPS and IAC in it about a year ago, so I don't believe that's the problem. Any ideas?

 

[tec2484]

After it does this does it run and go to idle normally? If so check the plug on the tps.

 

[Larry's shee]

See if the throttle is operating smoothly. Check it by hand at the throttle body. I had to tear my son's apart and clean and lube it. Also be sure it's clean inside throttle body where butterfly valve is.

 

[powerranger262]

I just cleaned it about a month and a half ago, but I will check it again. Now today it is fine, started 6 times with no problems.

 

[maxwell.hunt]

check for a leak at the throttle body. see if it sits open a little bit (the little butterfly inside that turns to let air into your intake) also try moving your throttle body up and down to see if theres a leak through hte side (i have heard of the little o-rings going nad having an air leak through the side)

 

[powerranger262]

Makes sense, I'll check.

 

[Black'03LevelII]

I had the exact same issue with my '03, I found my IAC was sticking, lubed it a little bit and seems to be working fine now. I'll probably replace it this year if it ever warms up!

 

[maxwell.hunt]

any luck?

 

[powerranger262]

It just went away.

 

[Daniel_187]

I had the exact same issue with my '03, I found my IAC was sticking, lubed it a little bit and seems to be working fine now. I'll probably replace it this year if it ever warms up!

Did you Just spray a little WD-40 in it? I think I have the Same Problem Because I cleaned it out with MAF cleaner and not It kinda sticks