DIY Throttle Body Bypass

[Johnson]

Basically the coolant flows around the throttle body and warms up the throttle plate so it does not stick in cold temperatures. Theoretically after doing this mod it should drop the air temperature. It is only to be used in areas that never get below 32 degrees. It is easily reversible. Use at your own risk.

Time:30minutes
Parts/tools:
5/16" or .3125" brass splicer- To connect the two hoses. $3

However!!!! The correct line size is 5/16", or .3125". I discovered this when the trying to use the suggested 1/4" barb hose connector. Wich jiggled loosely in both lines. Just to be sure that the hose wasn't just stretched from being on there so long, I used a micrometer to check the metal hose connections on the motor.

(2) 7/32" or 1/4" Vaccum Caps or Tape- To plug up the holes. $2
(2) 1/4"X5/8" Hose clamp- To clamp the two coolant hoses. $2
Rag
Needle Nose Pliers
Flat head- To tighten the hose clamps.

so for 4cyl- Needs 5/16 brass splice
along with 5/16 vac. caps
the clamps mentioned above worked.

Steps/Pictures
WARNING! Before you start make sure your car is cold. I will not be held responsible for your stupidity.
Step 1:
Remove intake.
Step 2:

Step 3:

Step 4:

The vacuum caps come a bit small so what I did to make them fit easier was to use a pair of needle nose pliers and twisted it a couple times to make it fit easier.

Step 5:
Check for leaks.
Step 6:
Put on your intake. Done!



Please rep if this has been helpful for you.
-->Clicky

 

[J30MAN]

should this not be done in climates where the temp drops below freezing?

 

[Geewiz]

wait, what? I'm no pro at engine mechanics, but why bypass it?

 

[mkdb89-02se]

neatto

 

[J30MAN]

wait, what? I'm no pro at engine mechanics, but why bypass it?

he tells why...basically it stop from the coolant passing through your throttle body...which through rides will get warm and warm the air going into your engine and "slow your car".

 

[Geewiz]

he tells why...basically it stop from the coolant passing through your throttle body...which through rides will get warm and warm the air going into your engine and "slow your car".

I know typically you'd want cooler, denser air hence intercooler for turbos. What application would be the reasoning for warmer?

 

[J30MAN]

I know typically you'd want cooler, denser air hence intercooler for turbos. What application would be the reasoning for warmer?

the reason it has those coolant lines is so the throttle doesn't get stuck when its cooled. he says everything up there.

 

[BadgerType]

i have had this mod done for over 3 years, its a good cheap easy mod

 

[J30MAN]

should this not be done in climates where the temp drops below freezing?

i have had this mod done for over 3 years, its a good cheap easy mod

would i be ok?

 

[Snoobly]

but if you live in iowa where temps get below zero at times, then you prolly shouldn't do this... right?