1996 need help identifying a part
Thread Starter
3rd Gear
Joined: Jan 2017
Posts: 3
Likes: 0
1996 need help identifying a part
I humbly admit I don't know my way around the engine compartment like a mechanic, but I'm trying to learn and do more myself. I'm having a hard time identifying what looks like a half inch copper pipe that is attached to the engine right next to where I check the oil on the passengers side. The pipe is leaking (spraying) radiator fluid when the engine is hot from around the threads. Over time, it appears to drain the lower reservoir tank. Unfortunately, I don't know what the part is to even see if I can find if anyone carries it or a substitute. I will try to attach two photos. If anyone knows what this is, please let me know. It's seems to be a mystery. Thank you.
Melting Slicks
Joined: Aug 2008
Posts: 2,082
Likes: 50
From: Palmdale CA
It looks like your indicating Anti-freeze is escaping at the "EGR supply tube to exhaust manifold" connection (threads) if this is true, and the Anti-freeze is coming from within the pipe you have a blown head gasket.
It is also possible that the coolant is being sprayed at the exhaust from a leak some where else.. can you Pan out and take a few more shots.
It is also possible that the coolant is being sprayed at the exhaust from a leak some where else.. can you Pan out and take a few more shots.
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
with desertmike1. There should be no way that coolant is in this tube. If you look closely it is attached (threaded fitting) to the exhaust manifold.Check for a pin hole in a hose close by that is spraying coolant.
Thread Starter
3rd Gear
Joined: Jan 2017
Posts: 3
Likes: 0
It looks like your indicating Anti-freeze is escaping at the "EGR supply tube to exhaust manifold" connection (threads) if this is true, and the Anti-freeze is coming from within the pipe you have a blown head gasket.
It is also possible that the coolant is being sprayed at the exhaust from a leak some where else.. can you Pan out and take a few more shots.
It is also possible that the coolant is being sprayed at the exhaust from a leak some where else.. can you Pan out and take a few more shots.
Melting Slicks
Joined: Aug 2008
Posts: 2,082
Likes: 50
From: Palmdale CA
"Wouldn't a blown head gasket cause some noticeable loss in power or the engine running off?"
I would agree with this! i.e steam coming from the exhaust, erratic coolant temps, dead spot in acceleration, rough idle etc etc.. this is why we suspect the coolant is being "Sprayed" at the exhaust from a small leak. You have 4 coolant carrying hose's running down that right hand side. Two heater hose's, one steam vent hose, and an recovery system hose, not to say the fact there is a Header tank not too far away. Many possibilities there.
What you need to do is get a strong flashlight and mirror and and do an thorough inspection, engine cold, engine hot, engine running etc
you could also get an Radiator pressurizing kit and pump the system up and inspect it that way. these kits are available in some auto parts store's through a Tool loan program..
I would agree with this! i.e steam coming from the exhaust, erratic coolant temps, dead spot in acceleration, rough idle etc etc.. this is why we suspect the coolant is being "Sprayed" at the exhaust from a small leak. You have 4 coolant carrying hose's running down that right hand side. Two heater hose's, one steam vent hose, and an recovery system hose, not to say the fact there is a Header tank not too far away. Many possibilities there.
What you need to do is get a strong flashlight and mirror and and do an thorough inspection, engine cold, engine hot, engine running etc
you could also get an Radiator pressurizing kit and pump the system up and inspect it that way. these kits are available in some auto parts store's through a Tool loan program..
Thread Starter
3rd Gear
Joined: Jan 2017
Posts: 3
Likes: 0
"Wouldn't a blown head gasket cause some noticeable loss in power or the engine running off?"
I would agree with this! i.e steam coming from the exhaust, erratic coolant temps, dead spot in acceleration, rough idle etc etc.. this is why we suspect the coolant is being "Sprayed" at the exhaust from a small leak. You have 4 coolant carrying hose's running down that right hand side. Two heater hose's, one steam vent hose, and an recovery system hose, not to say the fact there is a Header tank not too far away. Many possibilities there.
What you need to do is get a strong flashlight and mirror and and do an thorough inspection, engine cold, engine hot, engine running etc
you could also get an Radiator pressurizing kit and pump the system up and inspect it that way. these kits are available in some auto parts store's through a Tool loan program..
I would agree with this! i.e steam coming from the exhaust, erratic coolant temps, dead spot in acceleration, rough idle etc etc.. this is why we suspect the coolant is being "Sprayed" at the exhaust from a small leak. You have 4 coolant carrying hose's running down that right hand side. Two heater hose's, one steam vent hose, and an recovery system hose, not to say the fact there is a Header tank not too far away. Many possibilities there.
What you need to do is get a strong flashlight and mirror and and do an thorough inspection, engine cold, engine hot, engine running etc
you could also get an Radiator pressurizing kit and pump the system up and inspect it that way. these kits are available in some auto parts store's through a Tool loan program..
I found the part name: Secondary Air Injection Check Valve Pipe, Right, GM 10108553. However, the person that helped find the name of the pipe says the problem is more likely a cracked head or intake gasket issue much like you suggested. But I don't have the issues you mentioned. I want to hope that it is just a gasket, but where do I look for that potential problem?
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Race Director
Joined: Jan 2005
Posts: 10,641
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From: Slidell Louisiana
I found the part name: Secondary Air Injection Check Valve Pipe, Right, GM 10108553. However, the person that helped find the name of the pipe says the problem is more likely a cracked head or intake gasket issue much like you suggested. But I don't have the issues you mentioned. I want to hope that it is just a gasket, but where do I look for that potential problem?
Check the easy stuff (Desert Mike already mentioned) the heater hoses, temp sensor, coolant recover lines, coolant tank etc) if they are good time to pull the head!
Last edited by aboatguy; Feb 11, 2017 at 12:05 AM.