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Old 10-21-2018, 02:22 PM   #1
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07 ram 1500 5.7.

I can’t seem to win for losing with this truck. I keep getting signal loss from the throttle pedal to the throttlebody. The throttlebody was nasty and so I replaced it. Ryan a lot better so obviously there was some issue there then the problem happened again so my thinking would be Excelerator pedal. Replaced that was great for the last five days and then again today it did the same thing all over again with losing signal just throttlebody. I have looked for corroded wires chafing and wire looms to indicate robin have gone I know able to find anything. HELP!!!!

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Old 10-21-2018, 02:40 PM   #2
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Sounds like your getting a throttle body shut down. You should be able to turn the truck off and then start it back up again with the tb reset.

Are you running a tune? Any mods to the 5.7 Hemi?
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Old 10-21-2018, 02:49 PM   #3
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Mods are Cold air intake, Diablo tune and cat back exhaust. It won't restart if I shut it off and restart it. I put the stock tune back in it and it still won’t start. If I let it sit for a few hours it will restart but problem comes back quickly
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Old 10-21-2018, 03:14 PM   #4
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When this happens I have also gotten a crank position sensor code. Once got a cam and crank sensor codes
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Old 10-21-2018, 05:05 PM   #5
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Cam and crank sendors can throw codes for one another. Usually you can do an immediate restart. I would pull the TB plug and look at the pins making sure none got bent. Just for good luck run a external ground wire from the PCM housing bolt, TB housing bolt, valve cover bolt to chassis ground. These component have a common 5vdc and sensor ground. The TB is mounted on a non-conductive manifold and relies on it's pin for ground. I don't have specific 07 knowledge, but that is generally how the older models are set up. Good luck..
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Old 10-22-2018, 01:00 PM   #6
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If I turn the ignition on should the throttle body show a ground ?
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Old 10-22-2018, 03:06 PM   #7
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I can tell you this if you have a bad ground it will cause a whole host of issues... What you can do to test to make sure you have a good ground disconnect the vehicle from the battery first. Use your test light attach it to the positive side of the battery take your plug that goes to your throttle body and touch each terminal and see if the light turns on when the light pops on that will show you have a good ground...
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Old 10-22-2018, 04:56 PM   #8
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Quote:
Originally Posted by [email protected] View Post
If I turn the ignition on should the throttle body show a ground ?
I believe the ground is present whether the ignition is on or off.
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Old 10-23-2018, 12:11 AM   #9
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On my 07' quad cab 1500, I ran a ground wire from the throttle body to the negative post of my battery, just to be on the safe side.
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Old 10-23-2018, 12:44 AM   #10
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The ground to the chassis, body and engine are solid. I checked for ground on the body of the throttle body and it’s not grounded. I did not test the wires going to the TB for ground yet. Should the TB body be grounded?
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