Testing relay boards...., Can you bench test a 914 relay board....??? |
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Testing relay boards...., Can you bench test a 914 relay board....??? |
second wind |
Feb 24 2022, 02:05 AM
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#1
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Senior Member Group: Members Posts: 857 Joined: 30-December 10 From: Los Angeles, California Member No.: 12,543 Region Association: Southern California |
Hello out there....my car has been dying after getting a good warm up but starts the next morning. The tell tale symptom is that the fuel pump does not run when the stall occurs and even after hours of cooling off it still does not start...but it does in the morning....???
So talk on the street is the relay board is too old to work properly.....the description of 914 LTD's improved and rebuilt relay boards matches the symptoms of my car perfectly so as soon as I scrap up the money I will buy one.....meanwhile I have two spare relay boards and one looks really good. Is there a way to bench test the relay board before I swap the boards ?? These cars sure keep you on your toes and a relay board with fresh soldered connections sure sounds appealing so Brad is holding one for me. So back to the swap out....I hate to go to the effort just to install another faulty board. Look forward and appreciate any and all comments and help....thank you very much!!!! gg |
second wind |
Feb 26 2022, 04:31 PM
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#2
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Senior Member Group: Members Posts: 857 Joined: 30-December 10 From: Los Angeles, California Member No.: 12,543 Region Association: Southern California |
Well guys...thank you again very much and I have a new clue to share. What an automotive hell hole I have had today! So my Chevy S 10 pick up with almost 400,000 miles acts like there is no battery in the car. It has done this once or twice before....I tried charging the battery but the charger fell off the truck and didn't work after that. I figured I could jump it with the 914 but when I started it (first thing in the morning ice cold....but LA ice cold) it only ran 20 seconds and then no fuel pump sound. Hmmm, well I could take the battery out of the 914 and hook the truck up too it and that should work....not even close....barely lit up the dash even though it worked on the 914. So I am standing in the street with jumper cables in my hand and in two minutes I am up and running because of my new best friends that stopped to help me. So the new clue is that the fuel pump doesn't run even when cold.....just sharing. I think I will get the multi-meter out and start following some direction and start testing as an intelligent person....I will report back and I really do appreciate all of the help. BTW truck starts all day long now and might for a few days....but then ?? I am going to disconnect the battery at night and work on that issue later...914 in first spot.
All the best, gg |
Superhawk996 |
Feb 26 2022, 05:43 PM
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#3
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914 Guru Group: Members Posts: 5,903 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
Well guys...thank you again very much and I have a new clue to share. What an automotive hell hole I have had today! Hmmm, well I could take the battery out of the 914 and hook the truck up too it and that should work....not even close....barely lit up the dash even though it worked on the 914. So I am standing in the street with jumper cables in my hand and in two minutes I am up and running because of my new best friends that stopped to help me. So the new clue is that the fuel pump doesn't run even when cold.....just sharing. Sorry to hear about the added drama of the S10. Going back to not assuming anything - are you ABSOLUTELY sure your 914 battery is good? Based on description above I wouldn't assume that. Yeah, a 914 battery might not be up to the task of cranking a S10 but it needs to be verified. So much of the troubleshooting you're going up against is going to need a verified 12v power source. It is very possible for battery to show 12v but then collapse when a significant load is placed on it. Again . . . just sayin' A bad battery could be why you're now noticing that the fuel pump dropped out even when cold. I don't know this for sure, but assuming the battery is solid is not a good baseline to start from given what you've just laid out. If there is any question about its status, have it load tested at FLAPS. |
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