Jumping the starter relay
Thread Starter
Instructor
Joined: Mar 2006
Posts: 222
Likes: 3
From: Campbell CA
Jumping the starter relay
Help,
Just installed a freshly rebuilt engine(cam bearings were down to copper at 55k miles). I have a no crank condition. I want to jump the starter relay to make sure the starter isn't the issue. If I jump the 87 and 30 terminals it should crank correct? Do I need to engage the clutch? Right now it doesn't crank when I jump it with the clutch depressed.
2007 Base M6
Just installed a freshly rebuilt engine(cam bearings were down to copper at 55k miles). I have a no crank condition. I want to jump the starter relay to make sure the starter isn't the issue. If I jump the 87 and 30 terminals it should crank correct? Do I need to engage the clutch? Right now it doesn't crank when I jump it with the clutch depressed.
2007 Base M6
Melting Slicks
Joined: Apr 2010
Posts: 2,790
Likes: 108
From: On the coast North of SF bay
You should be able to easily check if there is at least some fuel pressure by removing the cap on the fuel rail an pressing the schreader (sic) valve momentarily. Some fuel should squirt out. Try turning the key on for a moment first; listen for the fuel pump. No fuel pressure, no crank...
Does your code reader talk to the ECM/PCM?
Does your code reader talk to the ECM/PCM?
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,150
From: SW Florida
2021 C6 of the Year Finalist - Modified
To turn the engine from the starter relay ...
Pull the relay in the photo below:
Attachment 48338997
Then get a metal paper clip and bend it into a U-shape. Then stick each end of the U-shaped paper clip into each of the contacts as shown below:
Attachment 48338998
BTW ... The engine will turn over, but will not start. No power to the spark plugs and no fuel to the injectors will be provided ... no need to touch the start button when doing this.
At least you will know if the starter is working or not.
Pull the relay in the photo below:
Attachment 48338997
Then get a metal paper clip and bend it into a U-shape. Then stick each end of the U-shaped paper clip into each of the contacts as shown below:
Attachment 48338998
BTW ... The engine will turn over, but will not start. No power to the spark plugs and no fuel to the injectors will be provided ... no need to touch the start button when doing this.
At least you will know if the starter is working or not.
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Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,150
From: SW Florida
2021 C6 of the Year Finalist - Modified
Do you have a set of headers on your car?
Depending on the brand, but some aftermarket headers have been known to cause the contact terminals in the starter motor solenoid to burn up from heat .(do to how close one of the header's primary tubes are located in relation to the starter solenoid).
Depending on the brand, but some aftermarket headers have been known to cause the contact terminals in the starter motor solenoid to burn up from heat .(do to how close one of the header's primary tubes are located in relation to the starter solenoid).