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Old 05-20-2014, 01:09 PM   #1
djcrisco
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2001 SL1
2005 VUE 3.0L
Default 2001 Saturn SL1 Fuel Pump Relay Not Switching Over

I have a 2001 Saturn SL1 (manual 5 speed) with like 170k miles on it. The other day I was driving home and after a left turn through an intersection it died. I had thought I stalled it out so I just let the clutch out and it jump started. It drove the rest of the way home (about 12 miles) before dying in the parking lot of my apt complex. I tried to jump start it again but it wouldn’t go.

Using Youtube user “richpin06a”'s videos to diagnose the fuel system we determined the fuel pump still turns on by jumping across the relay. When we turn the ignition on we don’t hear the relay click but are able to switch the HVAC relay and the fuel pump relay and the blower still comes on so therefore we can conclude the relay is still good. When the car is off we have 5.5V coming from the green/white wire from the ECC under the hood. This voltage jumps to 12V as you start the car for 2-3 seconds like it should and then goes back down to 5.5V. We tried to probe a test light at the output of the ECC on the green/white wire and nothing lights up which leads me to believe there is not enough current getting through. Under the steering column I hooked up a DMM in parallel to the green/white wire coming from the computer into the junction box and this didn’t show any current when cycling the car.

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Old 05-20-2014, 01:35 PM   #2
billr
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Default Re: 2001 Saturn SL1 Fuel Pump Relay Not Switching Over

Is this the same car as in the similar "crank no start help!" thread?

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Old 05-20-2014, 01:40 PM   #3
djcrisco
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Default Re: 2001 Saturn SL1 Fuel Pump Relay Not Switching Over

no, this is my first thread on the forum

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Old 05-20-2014, 03:32 PM   #4
djcrisco
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Default Re: 2001 Saturn SL1 Fuel Pump Relay Not Switching Over

oh i guess my brother posted on this same forum! so yes its the same car

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