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Z06 won't start after clutch install

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Old Apr 23, 2018 | 07:32 PM
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Default Z06 won't start after clutch install

I had what I thought was a reputable shop install a new clutch in my 2004 Z06. Now they are saying the car won't start and suspect the fuel pump has failed. They say there is 0 pressure at the fuel rail. They claim they tapped on the bottom of the fuel tank and the pump came on and the car started but stopped again after few minutes.

The car started and ran perfectly before the clutch install. Do you guys have any ideas of what they might have done to cause this issue?
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Old Apr 23, 2018 | 07:57 PM
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I would check the fuel pump ground on the frame at driver side rear wheel well for good connection and properly tightened down.
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Old Apr 23, 2018 | 10:44 PM
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do you have to have to have the clutch pushed in to start the car? wheres the switch/sensor for that? is there a neutral safety switch ? did they plug those back in?
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Old Apr 24, 2018 | 08:33 AM
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Does it not crank or crank and no run??????


What DTCs are being displayed????????

Fuel pump will ONLY PRIME when key is placed to ON. How are they checking fuel pressure and when?? When the pump primes, you SHOULD see pressure at the front driver side rail schrader valve.

Bill
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Old Apr 24, 2018 | 08:35 AM
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Originally Posted by bobs77vet
do you have to have to have the clutch pushed in to start the car? wheres the switch/sensor for that? is there a neutral safety switch ? did they plug those back in?
The car cranks just won't start so I think the switches are all connected properly.

Just hard for me to believe that the fuel pump died while the car was having the clutch installed. It seems to me that it has to be something that was disturbed.
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Old Apr 24, 2018 | 11:22 AM
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Check the fuel pump FUSE and the fuel pump relay. Make sure that you are getting POWER at the fuel pump fuse by checking it with a Multimeter to ground.
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Old Apr 24, 2018 | 12:33 PM
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You should also be able to hear the fuel pump turn on when you cycle the key.
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Old Apr 24, 2018 | 02:38 PM
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Problem solved!!

Turns out they had forgotten to reconnect the ground G105 back to the frame after they are disconnected it to move the header.

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Old Apr 24, 2018 | 02:45 PM
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Glad to hear you're up and running.

As Bill posts, grounds and the ignition switch can cause all sorts of problems in these cars.
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