Question about Roush CAI -

4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Thread Tools Search this Thread
Old 01-13-2014, 02:18 PM   #1
Thread Starter
Join Date: Jan 2014
Location: Kansas
Posts: 2
Unhappy Question about Roush CAI

I recently bought a 2003 Mustang GT with a Roush CAI on it. I've been noticing problems when I first start the car and put it in gear (it's an automatic). As soon as I put it in gear the rpms jump up and down like the car is going to die if I don't give it gas soon. A friend of mine said that my car is likely not tuned and that the Roush CAI is bogging it down and causing it to almost die. Does anyone know if that makes sense? I'm looking for someones opinion and for that matter is it worth it to tune it anyway?

jfriesen is offline   Reply With Quote
Old 01-13-2014, 02:30 PM   #2
2nd Gear Member
Csrt4to5.0gt's Avatar
Join Date: Jun 2013
Location: Pennsylvania
Posts: 352

A lot of cold air intakes do require a tune for it to work properly. Not sure about the roush for your year, though. You can check on americanmuscles website for that intake and your year and it should say whether a tune is required or not.
Csrt4to5.0gt is offline   Reply With Quote
Old 01-13-2014, 04:25 PM   #3
4th Gear Member
Z28KLR's Avatar
Join Date: Nov 2009
Location: SoCal
Posts: 1,542

Check the IAC for proper operation and inspect for vacuum leaks.

These cars aren't sensitive to changes like 05+ cars are, tuning specifically for a cai is unnecessary and I doubt cost effective or beneficial.
Z28KLR is offline   Reply With Quote
Old 01-14-2014, 08:02 AM   #4
Thread Starter
Join Date: Jan 2014
Location: Kansas
Posts: 2

I'll be sure to look at it thoroughly. I can't seem to find a roush cai on the market for my specific car so I do not know where the previous owner got this one. Thanks for the input guys!
jfriesen is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Tune with a stock air box mapitts 5.0L GT S550 Tech 49 05-15-2016 02:57 AM
Wheel Question! (New member, hi folks) Tivo304 New Member Area 4 12-05-2015 08:46 PM
Code troubleshooting Jb145700 4.6L V8 Technical Discussions 8 09-24-2015 04:08 PM
Tuner/air intake dealer service question 04stangman 2005-2014 Mustangs 4 09-17-2015 01:45 PM

air, cai, cold, intake, roush

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 03:30 AM.