Question 2007 E450 V-10 loss of power

[Olddawg]

A MAF can be a problem. Same as an air leak. Skipped timing chain would give a crank position error. Ignition would give a miss code. O2 sensor should give code with leaks and MAF, but those two are where I'm leaning. MAF is not that expensive, I would replace and do another test drive. Quality of gas may be an issue as well.

Not a skipped chain if as MAF orO-2 sensor it would code

 

[Kevin D Pem]

Not a skipped chain if as MAF orO-2 sensor it would code

Everything should code! Well except bad gas.

 

[Olddawg]

Everything should code! Well except bad gas.

I agree..no codes ever.. never got hot..always well maintained 20,000 miles on it.. soon as it happened I 5hought I got bad gas…replaced,all the gas…fuel filter and checked pressure all was good…

 

[Kevin D Pem]

You need to get in contact with a recently retired mechanic! Oh! Wait you are one!!! What a dilemma!

Check all connections to the sensors, special attention to those sensors that may float.

 

[Kevin D Pem]

Sounds like it in limp home mode

 

[rv4travlin]

I had something similar happen on an old truck. It was a bad alternator. It wasn't giving enough spark to the plugs....

 

[brasd831]

Post something when it's fixed. I've been fighting the same issue. Definitely frustrating.

 

[Olddawg]

Sounds like it in limp home mode

If it was, it never said so on computer, ever no present codes, no stored codes.. nothing at all.. starts and runs great everytime , never got hot ..just a loss off power whenever I kick into passing gear.. engine was actually pinging real bad was scary was worried about permanent damage

 

[Joe Dutchstar]

You might look here. FORD Technical Service Bulletins (TSBs) - Ford Truck Enthusiasts Forums

 

[Olddawg]

Keep looking! I think it's not that sensor! Why? Because throttle sensors typically have a dead spot, and when past that location resume proper operations!

Not the sensor you were correct

 

[Olddawg]

You might look here. FORD Technical Service Bulletins (TSBs) - Ford Truck Enthusiasts Forums

Thanks I will check it out

 

[Kevin D Pem]

If it was, it never said so on computer, ever no present codes, no stored codes.. nothing at all.. starts and runs great everytime , never got hot ..just a loss off power whenever I kick into passing gear.. engine was actually pinging real bad was scary was worried about permanent damage

Check the ping sensor, may be called knock sensor. Crank position sensor. And timing chain.

 

[Joe Dutchstar]

Just to verify throttle sensor you can test it easy enough

 

[Olddawg]

Have you put a Guage on fuel pressure?

Regulator, fuel pump???

Yes fuel pressure is good no leak down

 

[Olddawg]

Check the ping sensor, may be called knock sensor. Crank position sensor. And timing chain.

How do I check ping sensor?