I am at wits end. I have a 2011 800XP that ran great until recently. It started idling rough and high and very hard to shift. I replaced the TPS harness with no change. I took it to the dealer, TWICE, and he could find nothing wrong. It does not through a code. The dealer suggested replacing the throttle body to the tune of $500.00. For now, I have to turn it off, shift gears, then re-crank it. HELP!!! Duck season is here! Thank you.
High idle and hard to shift
1 - 20 of 32 Posts
Joined
·
6 Posts
I just did the iac harness replacement and now it starts fine and idles at about 1250 rpms, but after it warms up the idling goes as high as 3100.....getting very frustrated. 302 miles since new, what next???
Joined
·
3,789 Posts
2 things.
Take off the IAC valve ... it's the one with 3 Phillips head screws on the passenger side of the throttle body, towards the top and rear of it. when you pull it out take some brake or carb cleaner and clean up the bore good, and the little plunger on the valve. the slightest amount of gunk will cause an air leak and a high idle.
Next remove the T bap ( in front of the throttle body in the rubber boot, held in with 1 bolt) sensor and clean the part that goes into the boot with some brake/carb/ electronics cleaner. these can get gunked up in time and give false readings.
Might be best to disattach the throttle body when doing this so you don't put too much cleaner down the intake to the engine. dont' want it injesting too much and bending a rod or something. I'd leave the throttle cable hooked up and clean the bore of the throttle body while you're there.
I bet it takes care of your problem, it did on my 2011.... and mine was doing it especially when cold and usually went away when fully warmed up, but not always. since I've cleaned the IAC, the problem left and hasn't come back.
Take off the IAC valve ... it's the one with 3 Phillips head screws on the passenger side of the throttle body, towards the top and rear of it. when you pull it out take some brake or carb cleaner and clean up the bore good, and the little plunger on the valve. the slightest amount of gunk will cause an air leak and a high idle.
Next remove the T bap ( in front of the throttle body in the rubber boot, held in with 1 bolt) sensor and clean the part that goes into the boot with some brake/carb/ electronics cleaner. these can get gunked up in time and give false readings.
Might be best to disattach the throttle body when doing this so you don't put too much cleaner down the intake to the engine. dont' want it injesting too much and bending a rod or something. I'd leave the throttle cable hooked up and clean the bore of the throttle body while you're there.
I bet it takes care of your problem, it did on my 2011.... and mine was doing it especially when cold and usually went away when fully warmed up, but not always. since I've cleaned the IAC, the problem left and hasn't come back.
Joined
·
3,789 Posts
no problem, just passing down some advice that someone else gave to me.
Joined
·
6 Posts
Strange! I started it up sunday, started fine, idled at 1800 for a few minute or so and then down to 1250, and no service engine light. I'm stumped, does it take a while for the computer to clear the code and to return to normal operation? I hope so but I really doubt it. I'll find out on the weekend I guess.
Joined
·
3,789 Posts
no it really doesn't need any time to re-set. Its either fixed or it isn't..
Did you clean everything out ?
Did you clean everything out ?
Joined
·
6 Posts
i didn't clean anything out, just replaced the iac harness, but definitely going to do the clean. cant hurt
Joined
·
3,789 Posts
that's good advice Allan.!
it's about the only way to avoid transmission damage when they're idling that high.
it's about the only way to avoid transmission damage when they're idling that high.
Joined
·
6 Posts
just checked the code for the light that was still on....O 520207 5. It says all wheel drive, never touched anything else other than the iac, what gives? Really getting tired of this machine
Joined
·
8,062 Posts
Did you clean The T-BAP sensor yet ? Did you check it for chafed/broken wire ?
Joined
·
6 Posts
haven't cleaned it yet,( thats my next step) but where would a chafed/ broken wire for this code be? would the T-BAP sensor cause this code?
Joined
·
53 Posts
Found this in another thread, posting it here in case someone reads and needs a T-BAP.
Only The Best
1 - 20 of 32 Posts
