|07-02-2008, 03:10 AM||#1|
Join Date: Jul 2003Vehicle:
99RS TWE&SCAT EJ257
Cruise control issues: 400 mile trip tomorrow!
1993 Legacy manual trans
cruise control essentially stopped working all together about 2 years ago
Diaphram/spring/vac line is all good (checked it w/ my mouth)
put in pump/controller/relay out of a 90 legacy auto
cruise seems to stay on longer now... (by about 5 seconds) but the car bucks, surges, then the cruise turns off
what could be causing this?
ps no ABS
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|07-02-2008, 03:52 AM||#2|
Join Date: Apr 2007
Location: Boston / Ipswich, MAVehicle:
'02 WRB VF-39'd WRX
W/06 STi Drivetrain swap
Have you checked for resistance in the wires? or possibly a bad ground?
also I would borrow or otherwise obtain a hand operated vacuum pump to test the vac lines and diaphram.
It's hard to say without diagrams or the car in front of me what would cause such strange behavior.
|07-03-2008, 12:17 AM||#4|
Join Date: Apr 2002
This is sometimes caused by a faulty or out-of-adjustment clutch switch.
Not sure a controller from an auto model would work right: it may require grounding
one wire as I (vaguely) recall.
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