2009 Yukon Sluggish Performance

[johnny t]

I have an 09 yukon. so far I got a CAI, MAS, Superchips Programmer, 3.73 gears and flowmasters. After all that it is still sluggish as it can be!!

Any helping ideas?

So far, the best it drove was in performance tune with 93 gas but even then it wasn't anything to be too happy about.

 

[Goodinblack]

Trade it for a Vette.

 

[Regency]

It'll never be as fast as you want it I drive a 08 Yukon (my moms) and a 07 SRT8 Jeep and the Yukon is a dog even with small bolt-ons like CAI if you really want it to be fast get a supercharger or I would try a BB tune

 

[johnny t]

I really don't care for it to be fast but i want it to be responsive

---------- Post added at 12:26 AM ---------- Previous post was at 12:23 AM ----------

Trade it for a Vette.

good idea!!

 

[Regency]

Contact Jennabear

 

[MACHO]

I really don't care for it to be fast but i want it to be responsive

---------- Post added at 12:26 AM ---------- Previous post was at 12:23 AM ----------




good idea!!

BlackBear Performance Tune will take care of that.

---------- Post added at 09:46 PM ---------- Previous post was at 09:46 PM ----------

The biggest benefit is the transmission tune.

 

[JennaBear]

I would definitely recommend removing and packaging up that aftermarket MAF, then selling it. They send a signal to the computer that is not accurately calibrated. Can make your vehicle run lean and cause detonations; which will take away from performance.

 

[johnny t]

I really dont see any diff with or without it. Could there be an issue with the gas pedal or throtle cable?

 

[73shark]

It's probably in part due to torque management.

 

[JennaBear]

I really dont see any diff with or without it. Could there be an issue with the gas pedal or throtle cable?

I recommend taking the MAF off and letting the computer relearn itself. Also, what octane are you using? With your year, you should be using 89+.