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The front motor mount has a sealed diaphragm filled with some type of liquid. The small hose is a vac line used to control the diaphragm. The diaphragm/vac line is part of the engine mount control system. This system is used to control excessive engine vibrations at idling only.
For free TSB’s
http://www.bbbind.com/tech_database.htmlWiring diagram can be found at http://www.bbbind.com/technical.html
Commons items are power, ground, ignition switch, and relay.
Do you have a volt/ohm meter for troubleshooting help.
If so, remove fuse 5 and ohm out fuse. Then check for power at fuse 5 socket. Reinstall fuse
If good, then remove fuse 19 and ohm out fuse. Check for power at fuse 19 socket with key in and
ignition switch in ON position. Reinstall fuse.
If good, now need to check input/output to relay contact and coil.
Don’t know were the location of heater relay is.Commons items are power, ground, ignition switch, and relay.
Do you have a volt/ohm meter for troubleshooting help.
If so, remove fuse 5 and ohm out fuse. Then check for power at fuse 5 socket. Reinstall fuse
If good, then remove fuse 19 and ohm out fuse. Check for power at fuse 19 socket with key in and
ignition switch in ON position. Reinstall fuse.
If good, now need to check input/output to relay contact and coil.
Don’t know were the location of heater relay is.DON13, still having problems with that connector?
If so, first I would verify if main relay is defective.
With key in and in the start/crank position.
Check input pin 3 (blue/red wire) for 12vdc.
Check input pin 5 (red/white wire) for 12vdc
Check output pin 2A (yellow wire) for 12vdc
IF all checks are good: main relay is good; DO NOT REPLACE.If main relay is defective, disconnect battery and break apart main relay.
Take care not to damage the connector.IF connector is damage, go to a local junk/auto yard and try to locate a replacement connector.
You now have two options.
You can cut damage connector off and resolder replacement connector to wiring harness.
Or you can remove wires with pins from damage connector and reinstall in replacement connector.Good luck
DON13, still having problems with that connector?
If so, first I would verify if main relay is defective.
With key in and in the start/crank position.
Check input pin 3 (blue/red wire) for 12vdc.
Check input pin 5 (red/white wire) for 12vdc
Check output pin 2A (yellow wire) for 12vdc
IF all checks are good: main relay is good; DO NOT REPLACE.If main relay is defective, disconnect battery and break apart main relay.
Take care not to damage the connector.IF connector is damage, go to a local junk/auto yard and try to locate a replacement connector.
You now have two options.
You can cut damage connector off and resolder replacement connector to wiring harness.
Or you can remove wires with pins from damage connector and reinstall in replacement connector.Good luck
Your connector may have been overheated and is now welded togethere.
Try removing main relay from mounting braket and get both your hands on it.
Best of luck.
Your connector may have been overheated and is now welded togethere.
Try removing main relay from mounting braket and get both your hands on it.
Best of luck.
[quote=”rubflor” post=68124][quote=”DON13″ post=68101]One more question. Do you know if the fuel pump cuts itself off when it reaches its operating fuel pressure even if the driving voltage is still applied through the fuel pump relay?[/quote]
Don’t think so.
If engine is running, fuel pump is running.
Excess fuel pressure is regulated/bypass in gas tank (?).[/quote]Are you still thinking of by-passing the contact of main relay and apply 12vdc to pin 3
of fuel pump relay.IF so, yes its should work but is it safe.
You are only applying 12vdc to the input side of contact, coil ground of fuel pump relay is control
by PCM.I would not by-pass any relay, contact, nor coil. Not safe!
[quote=”rubflor” post=68124][quote=”DON13″ post=68101]One more question. Do you know if the fuel pump cuts itself off when it reaches its operating fuel pressure even if the driving voltage is still applied through the fuel pump relay?[/quote]
Don’t think so.
If engine is running, fuel pump is running.
Excess fuel pressure is regulated/bypass in gas tank (?).[/quote]Are you still thinking of by-passing the contact of main relay and apply 12vdc to pin 3
of fuel pump relay.IF so, yes its should work but is it safe.
You are only applying 12vdc to the input side of contact, coil ground of fuel pump relay is control
by PCM.I would not by-pass any relay, contact, nor coil. Not safe!
[quote=”DON13″ post=68101]One more question. Do you know if the fuel pump cuts itself off when it reaches its operating fuel pressure even if the driving voltage is still applied through the fuel pump relay?[/quote]
Don’t think so.
If engine is running, fuel pump is running.
Excess fuel pressure is regulated/bypass in gas tank (?).[quote=”DON13″ post=68101]One more question. Do you know if the fuel pump cuts itself off when it reaches its operating fuel pressure even if the driving voltage is still applied through the fuel pump relay?[/quote]
Don’t think so.
If engine is running, fuel pump is running.
Excess fuel pressure is regulated/bypass in gas tank (?).