Deathwish317

iTrader: (1)

I swapped the 2.4 intake mani and throttle body over to my 2.2. I totally forgot to get the hose from the intake mani when I bought the stuff but finally found the hose. It had a vacuum leak because of the hose problem and now that I swapped it to the correct hose from the 2.4, it still is doing it. I made sure everything was tight and not loose fitting. Anyone that has done this swap lend a idea to help figure it out.

Slowbalt2000

iTrader: (1)

Are you talking about the brake booster hose under the throttle body?

Deathwish317

iTrader: (1)

I believe so? Sorry, I'm not completely sure what that line is called. It's what would connect to the yellow nipple. It acts like it wants to die and drops to 500 rpm's but doesn't die. Doesn't do it all the time but when it does, it's very annoying. LOL

Slowbalt2000

iTrader: (1)

I just got a male to male barbed brass fitting that was the correct size, and coupled another length of hose to that nipple and then used hose clamps on all of the connections. Works dandy for me. Are you using hose clamps?

Jesse

iTrader: (4)

Which yellow nipple? top or bottom? There are two in that pic. I think you're talking about the EVAP purge valve. That hose being broken causes all sorts of surging problems. Check for cracks. If there are minor ones, use E-6000 adhesive and let it dry at least overnight. To my knowledge that hose and fitting has no replacements. I've been looking a very long time.

If you're talking about the one on the bottom it's the brake booster hose.

Deathwish317

iTrader: (1)

Yeah, the one that's connected to the intake manifold. I had a male-to-male connector but it still did the same thing, figured I would just get the stock 2.4 hose.

07blackg5

iTrader: (8)

disconnect the battery for 15+ minutes to reset the ecu. see if that helps

Deathwish317

iTrader: (1)

I did that when I did the swap and it still did it.

SleepyCobalt

don't you have to re tune with the 2.4 TB?

just spay some carb and choke cleaner and when it revs up you found the Vac Leak

Slowbalt2000

iTrader: (1)

Yea you should retune for it

Jesse

iTrader: (4)

It's hit and miss. You *should* retune but the car may not care if you swap them anyway. Or it may throw a huge temper tantrum. I ran 2.4TB for 6 months before I tuned for it.

Slowbalt2000

iTrader: (1)

My car hates my 2.4 throttle body. Probably because its for an hhr.

Jesse

iTrader: (4)

IDK mine was from a 2010 Equinox.

Deathwish317

iTrader: (1)

I got my TB from a 05 SS/NA. I had it retuned for it and still the same thing.

Slowbalt2000

iTrader: (1)

what ecu year and model do you have? every thing changed after 08

Deathwish317

iTrader: (1)

I have a 2005 base model.

Slowbalt2000

iTrader: (1)

Oh so youre untunable... I would just go back to the 2.2 throttle.

Deathwish317

iTrader: (1)

Untunable, how am I untunable?

Slowbalt2000

iTrader: (1)

You can only be tuned by trifecta

Deathwish317

iTrader: (1)

How is that untunable? I know people don't care for them per-say

Slowbalt2000

iTrader: (1)

i personally wouldnt deal with all that. seems like a huge hassle

Deathwish317

iTrader: (1)

Well, I only have GM to blame because that's the only company that can tune my year of cobalt.