Discoloration in intake

[Kalgorn]

What could this be?

 

 

I rarely have the airbox off so I don't know how long it's looked like this.

[sonyman87]

looks like its from the breather line. oil is known to get through and into the intake that way. i should say oil and gas fumes

[Kalgorn]

Could this cause any problems though? Is it recommended to clean it?

[Supreme Cutlass]

I would reccommend cleaning the inside of the throttle body; manually open the throttle plate and clean it out with a toothbrush and a solvent. it's not necessarily BAD, that will happen normally.

[ShockTherapy]

go ahead. seafoam that bad boy.

[Kalgorn]

I would reccommend cleaning the inside of the throttle body; manually open the throttle plate and clean it out with a toothbrush and a solvent. it's not necessarily BAD, that will happen normally.

 

What solvent should I use?

 

go ahead. seafoam that bad boy.

 

I already did (like a month ago) and I was wondering if that's what did it.

 

Do these cars actually have a "throttle body"? When I said something about my throttle body to my dad, he said it doesn't have a throttle body because it's EFI and has a fuel rail instead.

[ToroToro]

I think your dad is confused, because that is a throttle body.

 

Mine had that gunk too. Spray it with carb & choke cleaner, and wipe it off.

[Guest TurboSedan]

Do these cars actually have a "throttle body"? When I said something about my throttle body to my dad, he said it doesn't have a throttle body because it's EFI and has a fuel rail instead.

 

EFI engines still have throttle bodies. on a port fuel injected engine like yours all it really does is meter air.

[buckethead]

I think your dad is confused, because that is a throttle body.

 

Mine had that gunk too. Spray it with carb & choke cleaner, and wipe it off.

 

 

 

On fuel injected cars there is a throttle body to control the air going into the engine, and then a fuel rail to feed fuel to the injectors that squirt the gas into the cylinders.... Your dad has it backwards... on a carb'ed car there's not really a throttle body per say, because the carb handles both of those component's jobs.

 

carb is kind of like a throttle body and fuel injector in one that mixes the gas and air before it gets into the cylinder.

[Kalgorn]

That's what I thought. He basically said "I might be wrong" and I said "Yeah, I'm pretty sure you are".