Bone head play when removing intake manifold
Thread Starter
Pro
Joined: Oct 2004
Posts: 538
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From: Edmond Ok
Bone head play when removing intake manifold
The invevitable failure of my oil pressure sensor a few weeks ago left me with the task of replacing when I had some free time on the weekend. I have replaced this before on my previus 98, so I am familar with the procedure. Cept this time when I was pulling the little hard plastic A/C vacuum hose off the da#4 thing snaped just below the block. 
I tried sliding a hose over the top with a little glue to make sure it was air tight. Long story short the a/c vents don't work now, 
(the oil pressure is working however) and it threw a P0410 code (AIR system). I have reset this.
Any one replaced the hard plastic hose going from the map sensor to the where the tube attaches on the passenger side. Tricks and traps is what I am after. I have done a search and bill curlee had posted some excelent pictures or where the hose starts and ends
Thanks all.
I tried sliding a hose over the top with a little glue to make sure it was air tight. Long story short the a/c vents don't work now, (the oil pressure is working however) and it threw a P0410 code (AIR system). I have reset this. Any one replaced the hard plastic hose going from the map sensor to the where the tube attaches on the passenger side. Tricks and traps is what I am after. I have done a search and bill curlee had posted some excelent pictures or where the hose starts and ends
Thanks all.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I would remove the manifold (again
) and find a piece of brass tubing the size of the out side of the fitting that broke off. Then "CAREFULLY" drill out the sensor where the fitting broke, deep enough to insert the brass tube and JB Weld it in place. Make sure that you sand the brass tube to allow the JB Weld to adhere to it. I would also use a rubber vacuum line and extend the brass fitting so that your not placing any additional stress on the new fitting. Once its in place you should be fine.
BC
) and find a piece of brass tubing the size of the out side of the fitting that broke off. Then "CAREFULLY" drill out the sensor where the fitting broke, deep enough to insert the brass tube and JB Weld it in place. Make sure that you sand the brass tube to allow the JB Weld to adhere to it. I would also use a rubber vacuum line and extend the brass fitting so that your not placing any additional stress on the new fitting. Once its in place you should be fine.BC
Pro
Joined: Feb 2006
Posts: 647
Likes: 2
From: Keystone, I.T.
I would remove the manifold (again ) and find a piece of brass tubing the size of the out side of the fitting that broke off. Then "CAREFULLY" drill out the sensor where the fitting broke, deep enough to insert the brass tube and JB Weld it in place. Make sure that you sand the brass tube to allow the JB Weld to adhere to it. I would also use a rubber vacuum line and extend the brass fitting so that your not placing any additional stress on the new fitting. Once its in place you should be fine.
BC
) and find a piece of brass tubing the size of the out side of the fitting that broke off. Then "CAREFULLY" drill out the sensor where the fitting broke, deep enough to insert the brass tube and JB Weld it in place. Make sure that you sand the brass tube to allow the JB Weld to adhere to it. I would also use a rubber vacuum line and extend the brass fitting so that your not placing any additional stress on the new fitting. Once its in place you should be fine.BC
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
The sensor is seperate from the plastic housing. Contact Gene Culley www.gmpartshouse.com to see if he can get you that plastic part that plugs into the manifold. If anybody can get it for you, he can.
BC
BC
Thread Starter
Pro
Joined: Oct 2004
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From: Edmond Ok
It was the hard plastic hose. Broke behind a below the block. The map sensor housing is fine. I understand the hard plastic hose is routed along with the wire harness, which would make pulling a flexible tube just about impossible.
Thanks
Tech Contributor
Joined: Dec 2006
Posts: 10,962
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From: Van Buren Arkansas
Wounded Warrior Escort '11
Makes me wonder how the assembly line managed to connect those up on the line when these cars were being produced. I finally put a rubber extension tube on mine to make it easier.
Pro
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From: Keystone, I.T.
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Thread Starter
Pro
Joined: Oct 2004
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From: Edmond Ok
I could not get a vacuum hose over the hard plastic hose. The piece below the block just wasn't long enough to grab with anything and twist a tight fit vacuum hose over it. I did find a loose fitting hose, tried with a littl glue. Did not work,
I decided to run a new vacuum line to the vacuum tank, in the process I found two plastic hoses under the battery. One hose is routed into the firewall and the vacuum tank, (A/C damper) the other is routed into the wire harness and down to the vacuum tank (the right hose) I simply cut this slid on the vacuum hose routed the hose along the firewall along the wire harness and hooked her up to the intake. Used some electrical tape and electrical ties to keep it in place. So far so good.
Thanks all for your advice.
Last edited by djengr; Mar 12, 2008 at 07:51 AM.
Le Mans Master
Joined: Sep 2003
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From: Farmington CT
Cruise-In VII Veteran
Seen this dozens of times, most of the shops do this
