I have the V10 in my F53 motorhome chassis. It has been idling very rough since late last season. My question concerns the IAC should I have to replace it. Rockauto.com lists one for the V10 in an F250 truck but it doesn't list one for the F53. So far all the parts stores list one for the truck motors but doesn't for the F53. Would it be a different IAC for the V10 in the F53?

 

Try Official Ford Parts Site | Buy Motorcraft & OEM Ford Parts Online | FordParts.com and use your VIN.

Most likely the same as the trucks and vans, but it's a good idea to check and see. Most parts look-up applications don't even have listings for the F53.

 

What year is your motorhome? Try running some seafoam through the brake booster line to clear it up. Worked for me temporarily. Eventually replaced the IACV.

 

Well if your engine has an IAC valve on it then it is safe to assume you have a 2V V10. As far as I know the IAC is the same for F-series, E-series and F-53s. What you can do is pull your old IAC valve and clean it out good with some Berrymans carb cleaner.(works better than all others I have tried) and then reinstall. Though in my experience Rock Auto has very good customer service so I cannot imagine them giving you issue if you would have to return a part.

 

That won't cause the seafom to go through the IAC so it won't get cleaned. The IAC is a bypass around the throttle plate.

 

99 Holiday Rambler. It doesn't have a regular vacuum power brake booster. It's hydraboost. And I'm not so sure about the Seafoam thing anyway. It might do good as a tank additive.

 

In case you need some photos.


https://www.ford-trucks.com/forums/1...e-for-v10.html

 

This is much easier to replace on a motorhome!