Nick Austin

Hello everyone just subscribed recently after getting my first ford it's a 4.6 FX-4 witch ran great when I first got the truck but I just got back from outta town with some family and while I was gone something happened I pulled out on too the highway to head home and hit abowt 3000 RPMS to catch up with traffic but abowt that time the truck bogged down on me to abowt 1000 RPMS and started struggling to maintain speed then the check engine light came on the AC won't blow cold air and the cruise control stopped working it had some mixed opinions abowt it but I'm still not sure what's going on I think it could have something to do with the 02 sensor but tell me what y'all think or if anyone else has had this problem thanks.

techrep

iTrader: (1)

have the code read for the check engine light.. it will tell you what is going on.

snowborderus

Sounds like something happened and it put itself into limp mode. X2 on going to an auto parts store to have the codes read.

Adam013085

Aren't all FX4's 5.4?

screamineagle

Yep

Nick Austin

My trucks a 4.6 fx4 bud

Nick Austin

Ran diagnostics check. Turns out to be two of the O2 sensor's going out get a replace those but what do you think the cruise control going out and the AC not working could be? I'm not getting any codes on em

Nick Austin

You can get the fx4!in a 4.6 but they are more common in a 5.4

Adam013085

You are correct it seems. I'd say 4.6 in the FX4 is a rare bird. Personally I'd rather have the 4.6 over the 5.4 anyway.

techrep

iTrader: (1)

The cruise could be a results of your third brake light being inop..check it,
A/C may be low on Freon or a blown fuse...