I installed an AF1 3" CAI on my 07 5.4L truck. Only other modifications are a 2" level and a Magnaflow SIDO cat-back.

After installing the intake, the truck feels more sluggish than stock. I don't have any codes coming up, no lights coming on or anything. When I start the truck, it idles a little on the high side and after about 15 seconds it finds its way down to a normal idle. If I try to drive off before the idle has come down, the truck surges (sounds and feels like I am pressing and releasing the gas) and then after a few seconds it acts normal. Even when everything is warmed up and I've been driving, it just doesn't have the get-up-and-go that it used to.

Most of my mechanical experience has been with motorcycles (although I do have enough ability to rebuildcarbs, install cams, work on suspension, electrical). From my experience with those, this sounds like an air leak. Once we get a day out here, I'm going to go poke around with some starter fluid.

Questions :
- The MAF doesn't seem to have as tight a seal on the AF1 as it did on stock. Mine didn't come with a gasket or anything to correct this. Anyone else noticed this?
- Anybody else run into these symptoms?

Thanks!

 

Welcome aboard!

Our repair cruise is about to begin...but first, let's make sure we're all in the same dingy.

Have you put the stock intake back on and noticed the same problem?

Do the instructions specifically show a gasket and your kit doesn't have one?

Did you follow the instructions to the letter?

Did you disconnect the negative battery terminal for approx. 10 minutes during or after the install?

Is it an oiled or dry filter?

Did you clean the MAF when you installed the intake?

What did AF say when you called them?

How many miles on the truck? Properly maintained (IAW the Ford Maintenance Schedule)?

Is it too late to take the kit back and do this instead?

We'll be happy to help you row your boat, but ya' gotta put your oar (if I was MGDfan v.5.0 it would have been ore) in the water too!

 

Thanks for the quick response. Replied above!

 

My question is where did you buy the AF1? I have one for my '07, but seeing as they are no longer in business (and haven't been for some time) you probably bought a used one, correct?

If it's not used then it may have been one of the last few laying around somewhere, so I hope you got the correct one for your truck.



Here's the 3" on my truck, and my MAF fits perfectly. This is the one you should have.




Not gonna happen. I can't recall the exact date but it was about a year and a half ago that they went under. It was when the economy started going downhill.

 

Looks just like yours. I bought it from Troyer. MAF fits in the hole and bolts on, just doesn't seem to fit flush with the housing.

 

I completely forgot that AF was out of business. Sorry.

Maybe you could take a picture of the MAF and e-mail it to Troyer and ask them if it looks right.

I did a search and found one other owner that had a problem very similar to yours (2004 IIRC), but he never posted his solution (other than he was thinking about putting the stock intake back on).

 

http://www.troyerperformance.com/cgi...atalogno=16418


Is that the link? ^^

If so I'd call to check everything out because they haven't updated that page in quite a while. And I agree, it may just be an issue with the MAF....call and send some pics their way. Heck send them to me if you want and I'll go out and compare them to mine. My email is my username here @clemson.edu.

 

Thanks, I'll do that (might take me a few days to be home when its actually daylight out).

 

Clean the MAF sensor, and custom tune.