Large item above the injection pump.

[MarkEkberg]

Poking around under the hood this weekend and what I thought was the injection pump isn't. Injection pump is under it.



What is the thing above it? What does it do?

 

[Wayne M.]

Got a picture? Could it be the APPS? Mine is clear above the CP3 (inj pump) My APPS is under the battery.

 

[cerberusiam]

There isn't anythng above the CP-3 unless it is an add-on. There are only 2 accessories on the driver side of engine, PS pump is on the bottom and CP-3 is on the top.

 

[rscurtis]

Being that it's an '03, I would vote for the APPS also.

 

[cerberusiam]

Engine mounted APPS on a 6 speed? They are rumored to exist but never seen one.

Pictures, we need pictures.

 

[AH64ID]

Vacuum pump for a Jacobs Exhaust Brake?

 

[B.G. Smith]

Or air compressor for a PacBrake. bg

 

[MarkEkberg]

Here is a pic. No engine brakes I am aware of?

 

[AH64ID]

Engine Mounted APPS on a 6 speed.

 

[seafish]

Definitely APPS!!!

 

[MarkEkberg]

OK I'll bite... ... ... What is a APPS? Just did a search for a few min and didn't find anything

 

[cerberusiam]

Yep, now we have proof they exist. LOL!!

APPS - Accelerator Pedal Position Sensor

That is the drive-by-wire engine controller. Normally on a 6 speed they were under the drive side battery. Something to do with the truck being ordered with cruise control instead of speed control or some such build glitches.

 

[AH64ID]

So that begs the questions, what to the cruise control buttons look like?

 

[Wayne M.]

That's a first for me... .

 

[MarkEkberg]

Here is a pic of the cruise buttons. So i have something rare? Is that a good thing or a bad thing?

Sorry pic sucks it is dark.

 

[Wayne M.]

I see no pic...

 

[Prairie Dog]

That's where my APPS is too.

 

[cerberusiam]

Woops!! No picture attached.

It is rare and not neccessarily a bad thing. The under battery APPS is a pain to get at times, the engine mounted one is available from Timbo all the time.

Do you also have a vacuum pump on the passenf=ger side behind the battery and a line running the to the cruis control actuator?

 

[AH64ID]

You have the early style CC buttons, I wonder if the manual trans trucks with the early CC (early '03) have the engine mounted APPS and the newer CC buttons gets the battery tray APPS.

We already know there are some delineations for cruise control controlled idle based on button design.

 

[MarkEkberg]

Will take a look tomorrow for the vacuum pump. Learning all sorts of new stuff this week.