throttle body by- pass mod

has anyone tried the throttle body by-pass mod? it is supposed to make the air more cooler in turn better performance......???????????

has anyone tried the throttle body by-pass mod? it is supposed to make the air more cooler in turn better performance......???????????

I've done it. I don't know if it helped anything or not, but I just don't like the fact that warm air is running through my throttlebody warming the air up, when my local temps are always fairly warm. Hey, it was cheap and easy, so why not.

How do you do one of those thing-o-majigs?

The throttle body has two hoses connected to it.... in the front, underneath. They carry coolant through from the radiator thusly heating the air coming through the throttle body for better idleing and quicker warm-up in cold weather (supposedly).

Anyways...... disconnect both hoses and connect them together. You'll need a couple of hose clamps....... about a foot of hose (cut to suit) and a hose coupler. I beleive the size is 1/4"' I.D. (It's been so long since I did this mod...... if I'm wrong on the sizing maybe someone else can verify).

I had two choices on the hose coupler... a plastic one and a brass one. I chose the brass....... has two barb rings around the ends so when you push it into the hose it kinda tough to pull back off.

I also plugged the two open ends on my throtle body with a couple of rubber caps held on with hose clamps.

Cost about $5-$6 at the parts store. Good luck!

Thanks for the info, its simple enough. I just have one question, does this mod affect the way the truck goes into a closed loop, you know for emissions?

Thanks for the info, its simple enough. I just have one question, does this mod affect the way the truck goes into a closed loop, you know for emissions?

You'll be ok with this mod. It's just to help warm the truck up on cold days.

so then this mod is supposed to be an advantage? sorry, guys i am a little slow..... does doing this mod give you quicker warm up time in cold weather or leaving as it is, give you better warm up time? if this is so then why would you do it.... does it give you that much of a performance improvement?

so then this mod is supposed to be an advantage? sorry, guys i am a little slow..... does doing this mod give you quicker warm up time in cold weather or leaving as it is, give you better warm up time? if this is so then why would you do it.... does it give you that much of a performance improvement?

The original design of the line going into the throttle body gives you quicker warmup. Doing the mod will make it take a little longer to warm up. I couldn't tell a seat of the pants difference in doing the mod, but like I said earlier, I just don't like the fact that warm/hot coolant is going into my throttle body warming up the air.

I like it, I live in the desert so I don´t need the air hotter than it usually gets, I´m definetly doing it.

Living in the desert!!........ no hesitation. I live in PA. and I really don't notice any difference in warm up or in throttle response. But like slowprocess, I didn't like the idea of the air being warmed when everybody knows cooler air is better.

Guess I'm old school.

I still don't know what to do.... do you guys think I should do it....? I live here in Toronto, Canada.... it gets about minus -37 degrees celcius weather up here... burr....well at least it was a couple of weeks ago.....can anyone say co-co-cold....

What if the metal of the throttle body gets hotter than the coolant from the intake temp. They the coolant would be COOLING the throttle body right? How hot does the TB get in hot weather. Has anyone tested it?

I don't think it gets to 210...I did my mod when my truck was still farely warm from driving and it was cool.