PIP Sensor module for distributor

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Jan 13, 2015 | 02:42 PM

#46

subford

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From: Easton,Ks

Quote:

Originally Posted by 85F350IDI

hey yall, just recently got a 95 f150 with the 4.9&4spd just about 164,500k on the ticker, was thinking about rebuilding the distributor, last year i built one in my auto tech class for a 4cyl CJ5, wasnt too hard, would yall still advise against rebuilding one?

Most you buy at an auto part store are bad off the shelf unless they are a new distributor. Who said anything against rebuilding one?

Jan 13, 2015 | 05:01 PM

#47

93f150XL4x4

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Subford, I got home, unplugged the EVR and there was still vacuum to the line that goes to the EGR.

Jan 13, 2015 | 05:18 PM

#48

93f150XL4x4

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Is the EVR also called the EVP?

Jan 13, 2015 | 05:51 PM

#49

subford

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From: Easton,Ks

Quote:

Originally Posted by 93f150XL4x4

Is the EVR also called the EVP?

No it is not.
The EVP set on top of the EGR valve.

EVP: EGR Valve Position sensor.
EVR: EGR Vacuum Regulator actuator.

Jan 13, 2015 | 05:52 PM

#50

subford

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From: Easton,Ks

Quote:

Originally Posted by 93f150XL4x4

Subford, I got home, unplugged the EVR and there was still vacuum to the line that goes to the EGR.

Sounds like a bad EVR.

Jan 13, 2015 | 05:55 PM

#51

rla2005

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From: Kentucky

Quote:

Originally Posted by subford

Sounds like a bad EVR.

Jan 13, 2015 | 06:53 PM

#52

93f150XL4x4

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What is the plug next to the EVR in my top picture?

Jan 13, 2015 | 07:20 PM

#53

subford

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From: Easton,Ks

Quote:

Originally Posted by 93f150XL4x4

What is the plug next to the EVR in my top picture?

Going by the wire color it would be the AIRB solenoid plug.
But it looks like the AIRD solenoid plug is missing.
But I do not see either solenoid in the photo.
Also it looks like the EVR does not have its plug in place.

AIRB: Secondary Air Injection Bypass solenoid.
AIRD: Secondary Air Injection Diverter solenoid.

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Jan 13, 2015 | 07:56 PM

#54

93f150XL4x4

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Thanks Subford. You are the man. I've been reading these forums for about.. 2 or 3 years. And you're always the go to guy about some mysterious problem or some person who needs a crash course in the "easy stuff". Thanks a lot for all of your input. I drove around with the EVR unplugged and it drove farking fantastic. I am just trying to pinpoint and diagnose the culprit of still having vacuum with it unplugged, before I spend money of course. $35 for a new EVR isn't ridiculous but I would rather spend money on the problem. So I'm leaning towards the EVR is bad now. But I didnt really start at one end and do the process of elimination... So what should my next move be?

Jan 13, 2015 | 07:57 PM

#55

93f150XL4x4

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And the sensor next to the EVR is there. It's just not in the picture. And I took the picture when i had to replace the pigtail for the EVR.

Jan 14, 2015 | 07:06 AM

#56

subford

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From: Easton,Ks

It is hard to follow your EGR problem.
You say with the EVR unplugged you still have vacuum to the EGR valve with the engine running (idling). At idle you should not have any vacuum to the EGR with the EVR plugged or unplugged. This points to a bad EVR.

Now you say you can unplug the EVR and drive around and it runs great. That does not make much sense unless the EGR valve is closed while you are driving around.

Note that the EGR valve is normally open at hiway speed at part throttle and then closed at idle. If the EGR valve is open at idle the engine will idle very bad.
The EGR valve is close at wide open throttle for max power.

Jan 14, 2015 | 12:29 PM

#57

93f150XL4x4

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So my EGR valve is possibly bad/stuck closed? It only sort of stumbles with the EVR unplugged when I'm in 3rd gear or OD and I'm giving it more gas to get up to a speed without downshifting. But I think it's partly because I'm running 33x12.50's. I have 3:55 gears.

Jan 14, 2015 | 01:28 PM

#58

85F350IDI

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From: New Braunfels

@subford I thought you said that disassembling a dist. Just to get to the PIP sensor was a p.i.t.a. So I figured you might be advising against it?

Jan 14, 2015 | 02:13 PM

#59

subford

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From: Easton,Ks

Quote:

Originally Posted by 85F350IDI

@subford I thought you said that disassembling a dist. Just to get to the PIP sensor was a p.i.t.a. So I figured you might be advising against it?

You have to take the shaft out after removing the roll pin and then pressing off the gear. Then you have to re-time the engine with the SPOUT out.

But to me that is easier than taking the distributor out and putting it back in about four times while returning it each time before you get a good one from the auto part store.