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Old September 6th, 2011, 05:32 PM
JoeRover
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Joe Wurster
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At least it looks good

I recently purchased my second '95 NAS D90. It had some cosmetic issues but ran great. I painstakingly removed all the rusted hardware from the interior and replaced it. While working on this, I took the access panels and seat box loose and arranged to have the interior coated with spray-in truck bed liner. The guy that did the work (who has done good work for me in the past) said he'd need the entire truck to match the paint. So, I delivered the truck and all he had to do was remove about 3 screws and unhook the ECU to get the seatbox out. Well, everything got painted and he did a real nice job, but the truck wouldn't start when he got it back together. He said he also unhooked the fuel relays under the passenger seat as well (not sure why). The fuel pump fuse underneath the dash was blown so he replaced that. He took it upon himself to replace 1 of the fuel relays under the seat. He was able to jump it off and I drove it home. I put everything back together, including the stereo and hoped it was a hot wire that was somehow associated with the stereo that might be draining the battery. I replaced the battery and the truck worked for about 48 hours until the battery had been drained by the mystery hot wire. I have ordered 2 new fuel relays and will swap those out to see if that does the trick. Could the ECU have been fried during this process and thus be draining the battery? Additionally, when I was driving during the 48 hours on the new battery, the engine did not idle well. It would rev the RPMs and then come close to stalling and cycle up and down.
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  #2  
Old September 6th, 2011, 05:49 PM
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leastonce
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Jason England
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if it runs then the ECU is not dead and highly unlikely to be the drain ... likely a cable has been pinched when something has been re-assembled.

if the fuel pump fuse was blown likely it's something in that circuit ..
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  #3  
Old September 6th, 2011, 07:06 PM
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Jake K.
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What kind of relay did he use when he replaced the so called bad one? A normal 5-pin relay will kill the battery and give the running issues you speak of. You need a relay that has two 87's and not an 87 and an 87a pin. Get the factory relays back in and see what happens.
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Old September 6th, 2011, 07:59 PM
JoeRover
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Joe Wurster
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Thanks for the help. I'll change out and just put entirely new relays in and see if that does the trick. I did check the fuel pump fuse underneath the hood and it was ok. I assume that the Bosch relays previously tagged on ebay are the right ones? They are a 3rd of the cost of the ones on Rovers North.
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Old September 7th, 2011, 09:04 AM
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Charles Galpin
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Just wanted to concur that the wrong relay, or a corroded one even will drain the battery and it's likely that's all your issue is.

What part # on the bosch?
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Old September 7th, 2011, 10:13 AM
JoeRover
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Joe Wurster
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Originally Posted by cgalpin
Just wanted to concur that the wrong relay, or a corroded one even will drain the battery and it's likely that's all your issue is.

What part # on the bosch?
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