Nate1206 Posted August 3, 2023 Share Posted August 3, 2023 So my Jake’s stuck on today had no issues I wen to pull away after dumping and they stayed on and bellowed white smoke got out of the way flipped the switch twice on and off and it went away and they worked fine. Where do I start? I pulled the valve cover and manually depressed the solenoids and everything seemed to function correctly Quote Link to comment https://www.bigmacktrucks.com/topic/73119-1995-mack-ch-e7-350-jake-issue/ Share on other sites More sharing options...
fjh Posted August 3, 2023 Share Posted August 3, 2023 Replace the relays! Quote Link to comment https://www.bigmacktrucks.com/topic/73119-1995-mack-ch-e7-350-jake-issue/#findComment-536168 Share on other sites More sharing options...
Supermutt Posted August 3, 2023 Share Posted August 3, 2023 Does a e7 350 mechanical have relays ? Quote Link to comment https://www.bigmacktrucks.com/topic/73119-1995-mack-ch-e7-350-jake-issue/#findComment-536170 Share on other sites More sharing options...
Nate1206 Posted August 3, 2023 Author Share Posted August 3, 2023 It’s got the jacobs 680 not the dynatard if that helps Quote Link to comment https://www.bigmacktrucks.com/topic/73119-1995-mack-ch-e7-350-jake-issue/#findComment-536172 Share on other sites More sharing options...
fjh Posted August 3, 2023 Share Posted August 3, 2023 If its wired correctly it should have relays in the fuse panel just swap out a like relay in the panel with something else hi beam or some thing see if it changes the situation! 2 Quote Link to comment https://www.bigmacktrucks.com/topic/73119-1995-mack-ch-e7-350-jake-issue/#findComment-536178 Share on other sites More sharing options...
Nate1206 Posted August 3, 2023 Author Share Posted August 3, 2023 I’ll give it a whirl. Like I said it stuck on then went away and I can’t get it to do it again Quote Link to comment https://www.bigmacktrucks.com/topic/73119-1995-mack-ch-e7-350-jake-issue/#findComment-536180 Share on other sites More sharing options...
Joey Mack Posted August 3, 2023 Share Posted August 3, 2023 Is the clutch switch damaged or possibly flipped to the front of the clutch pedal arm, also, is the switch at the in section pump dirty? Maybe spray some elec cleaner on it it to remove the grime.. Quote Link to comment https://www.bigmacktrucks.com/topic/73119-1995-mack-ch-e7-350-jake-issue/#findComment-536181 Share on other sites More sharing options...
mechohaulic Posted August 3, 2023 Share Posted August 3, 2023 I would agree on the clutch/pump switches JoJo ;IF it kept screwing up . a one time stick ;;dash switch internal stick =corrected itself (for now).although a dash switch would NOT cause it to stay on. electrically I can't speak on relays behalf = I don't know the wiring schematics . Quote Link to comment https://www.bigmacktrucks.com/topic/73119-1995-mack-ch-e7-350-jake-issue/#findComment-536188 Share on other sites More sharing options...
Popular Post Nate1206 Posted August 3, 2023 Author Popular Post Share Posted August 3, 2023 Thank for for the help I believe I found the problem I tested the harness to the solenoids and if you move the wire a certain way it grounds it out so I have a harness coming tomorrow hopefully that fixes it 3 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73119-1995-mack-ch-e7-350-jake-issue/#findComment-536192 Share on other sites More sharing options...
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