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2003 passat, et al Auxillary water pump
Todays car is an '03 passat v6 w no heat at idle and good heat at cruise. Were checking heater core for plugging, and doing some diagnostic. What conditions is electric auxillary water pump powered up??- test light showing nothing at koeo or koer at the moment... Login to read more. 
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| Engine | 2.8 L |
| Trans | 5-speed Standard |
Vehicle Data
2003 Volkswagen Passat GLX 4 Motion 2.8L
| Engine | 2.8 L |
| Trans | 5-speed Standard |
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