Help with these two lines..s5 motor na
06-19-10, 08:58 AM
#1
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Help with these two lines..s5 motor na
Well i finally found my vacuum leaks but i have no idea where the nipple needs to be connected its right under the LIM pointing down, right behind towards the firewall..its where the arrow is pointing in the pic, it has a lot of suction (vacuum)... wondering where it goes heres the first one. first pic its just so you know where its at dont mind the circled part just the arrow and the 2n pic is the actual nipple.
1.
2.
And heres my other vac leak
3.
4.
1.
2.
And heres my other vac leak
3.
4.
06-19-10, 10:54 AM
#4
I'm going to assume from your pics that your car is an automatic and if that is the case then the item that is circled and on the front of the throttle body, which is the double throttle diaphragm, receives two of the hoses found in your second actual pic that depicts three hoses coming from a white plastic nozzle. Of the three hoses the one with the green/white valve in the 2nd pic goes to the connection which you highlighted with a red arrow. Most folks cap off the other two connections for the double throttle mechanism usually fails after all these years and would likely help your idling condition if capped.
Disclaimer: The above is based off the hose routing from an S4 auto which might be different then the S5.
Disclaimer: The above is based off the hose routing from an S4 auto which might be different then the S5.
06-19-10, 12:10 PM
#6
I'm going to assume from your pics that your car is an automatic and if that is the case then the item that is circled and on the front of the throttle body, which is the double throttle diaphragm, receives two of the hoses found in your second actual pic that depicts three hoses coming from a white plastic nozzle. Of the three hoses the one with the green/white valve in the 2nd pic goes to the connection which you highlighted with a red arrow. Most folks cap off the other two connections for the double throttle mechanism usually fails after all these years and would likely help your idling condition if capped.
Disclaimer: The above is based off the hose routing from an S4 auto which might be different then the S5.
Disclaimer: The above is based off the hose routing from an S4 auto which might be different then the S5.
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06-19-10, 12:20 PM
#8
EDIT:
To prove whether the car was an auto just check the double throttle diaphragm and see if it has one nozzle or two nozzles to it. One nozzle means 5 speed while two nozzles means automatic tranny.
06-20-10, 10:06 AM
#11
If this is the case, then it's likely your thermovalve was replaced with a triple nozzle instead of the double nozzle as a replacement. It's hard to see in the pic, but underneath your throttle body is there a nozzle like the one on your diaphragm. If not, then your throttle body is for a manual and it reinforces the notion that you have an extra thermovalve nipple. The vacuum created by the thermovalve should be the same across all three nipples so you can cap one off and use the remaining two. Also, in your pic with the arrow highlighting the large nozzle have you tried capping that nozzle as well?
06-20-10, 02:57 PM
#12
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also the automatic double throtle diapram is bigger than 5speed. appears to have to diaprams where the 5 speed one has only the one
06-20-10, 06:54 PM
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If this is the case, then it's likely your thermovalve was replaced with a triple nozzle instead of the double nozzle as a replacement. It's hard to see in the pic, but underneath your throttle body is there a nozzle like the one on your diaphragm. If not, then your throttle body is for a manual and it reinforces the notion that you have an extra thermovalve nipple. The vacuum created by the thermovalve should be the same across all three nipples so you can cap one off and use the remaining two. Also, in your pic with the arrow highlighting the large nozzle have you tried capping that nozzle as well?
