96 Blazer Vaccum line question
Chevy Nova
05-23-2010, 10:46 AM
I need to replace all the vacume lines on my sons blazer. There all rotting and im getting a P0420 code and before i can diagnose it properly I need to change the hoses to make sure they are not the source of the problem.
My question is about the 2 lines running down to the transfer case. The lines follow the dipstick tube. One is the source from the intake manifold on the drivers side of the vehicle at the firewall. Starts at transfer case up along side the dipstick tube for trans. Goes over to a t. 1 side of t goes down to hard plastic line? I believe to heater controls the other up to a check valve t the left side with the check on it connects to the manifold vacume the right side to the vacume ball on the hood. I s this the correct connection for this line? Is the plastic line going town for the heater controls? Its loction is just below the main electrical connection drivers side firewall.
The second line starts at the transfer case up the side of the dipstick tube and connects to a T 1 side goes to a larger side tube maybe 3/8" and to a electrical connection at the end. Im not sure what this is for. The other side of the T goes to below the battery tray. I believe this is for the 4 fwd switching? Not sure have yet to remove the tray.
Does this all sound correct? There is 1 more tube from transfer case that comes up along side the dipstick tube which is a vent.
All connections at the transfer case are to a molded fitting so as long as there marked or done 1 at a time I have no fear of getting them wrong.
They will just be a pain to run. I plan on using fuel lne the same size instead it should last longer and no fear of pinching or crimping.
I have a AllData acount but it doesnt show these lines and the diagram it does have can not be read.
Help in this matter would be appreciated.
I know there is one other vaccum line that runs from the evap solenoid down to the canister by the gas tank but I havent got to that yet. I know the other line will not effect my P0420 code but I need to replace all of them.
My question is about the 2 lines running down to the transfer case. The lines follow the dipstick tube. One is the source from the intake manifold on the drivers side of the vehicle at the firewall. Starts at transfer case up along side the dipstick tube for trans. Goes over to a t. 1 side of t goes down to hard plastic line? I believe to heater controls the other up to a check valve t the left side with the check on it connects to the manifold vacume the right side to the vacume ball on the hood. I s this the correct connection for this line? Is the plastic line going town for the heater controls? Its loction is just below the main electrical connection drivers side firewall.
The second line starts at the transfer case up the side of the dipstick tube and connects to a T 1 side goes to a larger side tube maybe 3/8" and to a electrical connection at the end. Im not sure what this is for. The other side of the T goes to below the battery tray. I believe this is for the 4 fwd switching? Not sure have yet to remove the tray.
Does this all sound correct? There is 1 more tube from transfer case that comes up along side the dipstick tube which is a vent.
All connections at the transfer case are to a molded fitting so as long as there marked or done 1 at a time I have no fear of getting them wrong.
They will just be a pain to run. I plan on using fuel lne the same size instead it should last longer and no fear of pinching or crimping.
I have a AllData acount but it doesnt show these lines and the diagram it does have can not be read.
Help in this matter would be appreciated.
I know there is one other vaccum line that runs from the evap solenoid down to the canister by the gas tank but I havent got to that yet. I know the other line will not effect my P0420 code but I need to replace all of them.
MT-2500
05-25-2010, 10:26 AM
I need to replace all the vacume lines on my sons blazer. There all rotting and im getting a P0420 code and before i can diagnose it properly I need to change the hoses to make sure they are not the source of the problem.
My question is about the 2 lines running down to the transfer case. The lines follow the dipstick tube. One is the source from the intake manifold on the drivers side of the vehicle at the firewall. Starts at transfer case up along side the dipstick tube for trans. Goes over to a t. 1 side of t goes down to hard plastic line? I believe to heater controls the other up to a check valve t the left side with the check on it connects to the manifold vacume the right side to the vacume ball on the hood. I s this the correct connection for this line? Is the plastic line going town for the heater controls? Its loction is just below the main electrical connection drivers side firewall.
The second line starts at the transfer case up the side of the dipstick tube and connects to a T 1 side goes to a larger side tube maybe 3/8" and to a electrical connection at the end. Im not sure what this is for. The other side of the T goes to below the battery tray. I believe this is for the 4 fwd switching? Not sure have yet to remove the tray.
Does this all sound correct? There is 1 more tube from transfer case that comes up along side the dipstick tube which is a vent.
All connections at the transfer case are to a molded fitting so as long as there marked or done 1 at a time I have no fear of getting them wrong.
They will just be a pain to run. I plan on using fuel line the same size instead it should last longer and no fear of pinching or crimping.
I have a All Data account but it doesn't show these lines and the diagram it does have can not be read.
Help in this matter would be appreciated.
I know there is one other vacuum line that runs from the evap solenoid down to the canister by the gas tank but I havent got to that yet. I know the other line will not effect my P0420 code but I need to replace all of them.
Vacuum line is best to use.
Fuel line is not correct size.
If your all data does not have the info contact them and they will fax or e mail you the info needed.
Also goo to your dealer and see if the have a vacuum line decal or will print out/off vacuum line routing for you.
My question is about the 2 lines running down to the transfer case. The lines follow the dipstick tube. One is the source from the intake manifold on the drivers side of the vehicle at the firewall. Starts at transfer case up along side the dipstick tube for trans. Goes over to a t. 1 side of t goes down to hard plastic line? I believe to heater controls the other up to a check valve t the left side with the check on it connects to the manifold vacume the right side to the vacume ball on the hood. I s this the correct connection for this line? Is the plastic line going town for the heater controls? Its loction is just below the main electrical connection drivers side firewall.
The second line starts at the transfer case up the side of the dipstick tube and connects to a T 1 side goes to a larger side tube maybe 3/8" and to a electrical connection at the end. Im not sure what this is for. The other side of the T goes to below the battery tray. I believe this is for the 4 fwd switching? Not sure have yet to remove the tray.
Does this all sound correct? There is 1 more tube from transfer case that comes up along side the dipstick tube which is a vent.
All connections at the transfer case are to a molded fitting so as long as there marked or done 1 at a time I have no fear of getting them wrong.
They will just be a pain to run. I plan on using fuel line the same size instead it should last longer and no fear of pinching or crimping.
I have a All Data account but it doesn't show these lines and the diagram it does have can not be read.
Help in this matter would be appreciated.
I know there is one other vacuum line that runs from the evap solenoid down to the canister by the gas tank but I havent got to that yet. I know the other line will not effect my P0420 code but I need to replace all of them.
Vacuum line is best to use.
Fuel line is not correct size.
If your all data does not have the info contact them and they will fax or e mail you the info needed.
Also goo to your dealer and see if the have a vacuum line decal or will print out/off vacuum line routing for you.
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