2.9 engine miss?

[Spitfire1975]

with no knocking now, that I can detect, I am hoping to just get rid of the 25 code. And lose the lack of power.

 

[Spitfire1975]

I did not change the valve guide seals.

 

[kimcrwbr1]

if your not losing oil and the plugs stay clean its not an issue mine had 2 good seals all the others were shot it blew black smoke when i started it after sitting a few minutes

 

[kimcrwbr1]

did you do the timing thing

 

[Spitfire1975]

no smoking, no oil loss, plugs look good.

 

[Spitfire1975]

did you do the timing thing

??? which timing thing?

 

[kimcrwbr1]

there is a way to test the knock sensor using milli volts or ohms i believe I did some study on them but could not find out any info on the ford ones and how they function

 

[kimcrwbr1]

plug the loose sensor in and start the motor put the timing light on the marks then tap the sensor and see if it retards the timing

 

[Spitfire1975]

wonder if I just check for ohms by hooking up the meter and tapping on it. Gonna give it a try here. hang tight a minute.

 

[kimcrwbr1]

it should stay retarded if you tap fast

 

[kimcrwbr1]

i dont think grounding an issue because it has two wires

 

[Spitfire1975]

nope. nada

 

[Spitfire1975]

true. won't be able to start the truck until the morning. will hook up the replacement and do that.

 

[kimcrwbr1]

if it responds it would be a wire the black and white is common to all the sensors and the yel/red goes to th computer pin 23

 

[kimcrwbr1]

does the knock sensor wire have a plug up by the coil on the drivers fenderwell that connects to the main harness