1996 Mustang Gt Sputters Under Throttle

[Sn95bythebay]

Whenever I give the car gas it has a humming/hissing noise coming from the passenger side of the car. I know I don't have an exhaust leak and I checked for vacuum leaks and did not find one. The car idles very high on cold start around 1500 rpm it will drop back down once I start driving but while I am driving it feels like I have a big lose of power. What else should I check for? It sounds like an vacuum leak but I cannot locate it

 

[jeno_labanca]

Check the air intake if your stock air intake is still on there could have a tear in the boot

Sent from my LG-H811 using Tapatalk

 

[Sn95bythebay]

Check the air intake if your stock air intake is still on there could have a tear in the boot

Sent from my LG-H811 using Tapatalk

After market CAI no leaks there.

 

[DSG_Mach]

Clean your Idle air control valve or get a new one. Also it prob wouldnt hurt to change out the fuel filter.

 

[Sn95bythebay]

Clean your Idle air control valve or get a new one. Also it prob wouldnt hurt to change out the fuel filter.

Both are relatively new and how would that help the no spark?

 

[Moosee1955]

What dtc codes are you getting? Run a fuel pressure test. You could have a weak fuel pump. A mis functioning tps switch will cause rough acceleration. As a rule idle air control valve causes stumbling, dying engine. Like I said run codes. How many miles on motor?


Sent from my iPhone using Tapatalk

 

[Moosee1955]

Usually when vehicle idles high, it's a lean condition. Computer is trying to compensate. Keep us posted.


Sent from my iPhone using Tapatalk