Intermittent No Start - Fuel Pump Current Ramping
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Date: 2020-08-05
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Comments and reviews: 10
chungaleta1234
The bad thing about your videos, as well as some other fellows', is that you get used to seeing how things are done in the big leagues. And then, like it happened to me this week, I had a major issue with my truck and went to the local garage. And Oh my God! Such a huge reality check! Like watching top models all day and then coming home to a fat, smelly, hairy wife!
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The bad thing about your videos, as well as some other fellows', is that you get used to seeing how things are done in the big leagues. And then, like it happened to me this week, I had a major issue with my truck and went to the local garage. And Oh my God! Such a huge reality check! Like watching top models all day and then coming home to a fat, smelly, hairy wife!
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Bernhard
It seems to pass most users attention, because in every diagnostic video people are calculating the RPM of fuel pumps. after you place the two cursors (as you did) you can read the RPM in the bottom right corner box of the Pico software. This feature has been there as long as I have my scope.
Greetings from a Pico user.
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It seems to pass most users attention, because in every diagnostic video people are calculating the RPM of fuel pumps. after you place the two cursors (as you did) you can read the RPM in the bottom right corner box of the Pico software. This feature has been there as long as I have my scope.
Greetings from a Pico user.
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Brandon
I just got a Pico and I'm looking for anything I can test and since I have a 2000 Grand Cherokee with the 4. 7 with original pump, I just did the same test for comparison. At idle my pump is running around 5. 4 amps and 6, 500 rpms with a similar looking waveform as the new pump in your video.
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I just got a Pico and I'm looking for anything I can test and since I have a 2000 Grand Cherokee with the 4. 7 with original pump, I just did the same test for comparison. At idle my pump is running around 5. 4 amps and 6, 500 rpms with a similar looking waveform as the new pump in your video.
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James
It says something about people's appreciation of knowledge and skill when Eric O has 55K subs and a showman and hack like Scotty K has 605, 000. I guess people want to be spoon fed a solution instead of really understanding a problem and learning from it. Keep up the fantastic work Eric.
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It says something about people's appreciation of knowledge and skill when Eric O has 55K subs and a showman and hack like Scotty K has 605, 000. I guess people want to be spoon fed a solution instead of really understanding a problem and learning from it. Keep up the fantastic work Eric.
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spelunkerd
Another outstanding video. I've played around with a generic oscilloscope but the end devices (such as the low current inductive ammeter used here) give critical functionality that is hard to copy. PICO seems like the best package, if I can ever afford another -toy- tool.
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Another outstanding video. I've played around with a generic oscilloscope but the end devices (such as the low current inductive ammeter used here) give critical functionality that is hard to copy. PICO seems like the best package, if I can ever afford another -toy- tool.
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Ryan
The amps the average and not the peak when measured on this type of waveform, so bad waveform would have been drawing roughly 5-6 amps. If you think about it you can't be drawing more current when you have less commutators or poor brush contact.
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The amps the average and not the peak when measured on this type of waveform, so bad waveform would have been drawing roughly 5-6 amps. If you think about it you can't be drawing more current when you have less commutators or poor brush contact.
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Justin
Next job for my PicoScope. ramp the pump on my 182k Odyssey. had a crank start/got stranded/crank no start/intermittent/came home on the hook. reflowed the main relay (resoldered bad solder joints). runs again but needs my due diligence.
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Next job for my PicoScope. ramp the pump on my 182k Odyssey. had a crank start/got stranded/crank no start/intermittent/came home on the hook. reflowed the main relay (resoldered bad solder joints). runs again but needs my due diligence.
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Daniel
Hey Eric great videos! Can you only use that method if the fuse only has a specific component on that circuit? for example. what if they had an evap pump running off the same fuse. that's hypothetical. it can be any component.
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Hey Eric great videos! Can you only use that method if the fuse only has a specific component on that circuit? for example. what if they had an evap pump running off the same fuse. that's hypothetical. it can be any component.
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JKLM's
I am truly jealous! I'm planning on buying one hopefully by June or July. I'll be watching and please share any growing pains so I can learn as you do! Awesome video and awesome addition to your shop! Thanks Eric O!
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I am truly jealous! I'm planning on buying one hopefully by June or July. I'll be watching and please share any growing pains so I can learn as you do! Awesome video and awesome addition to your shop! Thanks Eric O!
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FordTechMakuloco
Very good information indeed! I have been told current ramping is the holy grail of diagnostics. Maybe I can stop by sometime and get schooled by Eric O. in person. You are a wealth of knowledge sir.
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Very good information indeed! I have been told current ramping is the holy grail of diagnostics. Maybe I can stop by sometime and get schooled by Eric O. in person. You are a wealth of knowledge sir.
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