Part attached to passenger side inner fender liner

[PhdNPrerunners]

What is the part called that is attached to the inner fender liner on the passenger side and what does it do? The truck is a 96 4.0 4x4. Thanks guys

 

[Fx4wannabe01]

Sometimes called a "splash shield" or "splash gaurd". There's theorys but I don't know whats true and whats not in regards to their purpose.

a: keeps engine clean from splashes and debris carried up by the tires

b: gives a clean finished appearence on the exterior of the truck

c: when removed, equals better engine compartment temperatures






Or are you talking the 4-5" plastic ball thing?

 

[PhdNPrerunners]

Sometimes called a "splash shield" or "splash gaurd". There's theorys but I don't know whats true and whats not in regards to their purpose.

a: keeps engine clean from splashes and debris carried up by the tires

b: gives a clean finished appearence on the exterior of the truck

c: when removed, equals better engine compartment temperatures






Or are you talking the 4-5" plastic ball thing?

yes the plastic ball thing

 

[PhdNPrerunners]

Anyone know what that is?

 

[Fx4wannabe01]

Believe it's some sort of vacuum check for the heater system. I honestly don't remember...i knew at one point, but not anymore. lol. Maybe someone will chime in with a better, more accurate answer. If not, you can always post a new thread titled "Ball thing on passenger inner fender". I'll admit, I was confused on what you were talking about in the OP.

 

[Earl43P]

HVAC vacuum reservoir. It also has a checkvalve, which is how your HVAC controls can still operate after the truck is shut off.

The reservoir supplies the volume of vacuum that moves the heater/AC doors to control airflow. Vacuum varies with engine speed, so the checkvalve captures the highest (suction) pressure and keeps it available during periods of low vacuum. A good test is to shut off the engine, then operate the vent/floor/defrost positions. If you can't hear the doors moving, either the checkvalve is bad or that sphere is cracked (assuming the controls work properly with the engine running). It is common for the vacuum line feeding the sphere to get broken, which results in the doors defaulting to the Defrost windshield only position. A new checkvalve can be found in the HELP section of most AP stores. Simply add it to the suppy line or get a replacement checkvalve that fits into the sphere itself, where the line attaches to.

 

[Dweano]

Is it important it stays in the stock position? Cuz I took my splash guards out (temporarily) and I just cable tied that thing to the radiator hose I believe haha

 

[PhdNPrerunners]

Is it important it stays in the stock position? Cuz I took my splash guards out (temporarily) and I just cable tied that thing to the radiator hose I believe haha

Haha I did the same thing but one of the cables broke to the little ball. Is this a part I need to get fixed immediately or would I be ok driving around with it broke for a little bit?

 

[Dweano]

Haha I did the same thing but one of the cables broke to the little ball. Is this a part I need to get fixed immediately or would I be ok driving around with it broke for a little bit?

I second that question cuz it will prolly happen to me

 

[Earl43P]

If the vacuum line to it is broken, that introduces an engine vacuum leak, making it run lean, possibly enough to set codes and llght the CEL, with poor idling.

You can relocate it wherever, but if you want heat/vent control, keep it intact.

 

[PhdNPrerunners]

If the vacuum line to it is broken, that introduces an engine vacuum leak, making it run lean, possibly enough to set codes and llght the CEL, with poor idling.

You can relocate it wherever, but if you want heat/vent control, keep it intact.

Ya the truck idles poor. Do you guess have suggestions on how I could fix it cause it doesn't look like I can just by a replacement part?

 

[PhdNPrerunners]

anyone have any idea how I can fix it?

 

[Fx4wannabe01]

First I'd check other things......like regular maint....spark plugs, wires, fuel filter, clean MAF and TB and IAC.

To see those little hoses are bad, take a propane torch, DONT LIGHT IT, just let the fumes come out, if your idle spikes, you've got a hole in your hoses.

 

[PhdNPrerunners]

First I'd check other things......like regular maint....spark plugs, wires, fuel filter, clean MAF and TB and IAC.

To see those little hoses are bad, take a propane torch, DONT LIGHT IT, just let the fumes come out, if your idle spikes, you've got a hole in your hoses.

The whole hose broke. I am wondering if I can just replace the whole set up or will i have to have ford do it for me?