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Car Forum / Chevrolet / Chevrolet Trucks / August 20066.5 stalling
My 94 6.5 will start up fine, but about once a day it will stop running after a couple of mins. after you let it cool down for a min or so it starts back up. I installed a new PMD and didn't fix the problem, I took it to the dealer and had them run the diagnostic on it and it came back as having vacume hoses ran wrong. Nobody has touched the motor since I bought it back in Feb and this all started in mid June. Any ideas? >My 94 6.5 will start up fine, but about once a day it will stop running >after a couple of mins. after you let it cool down for a min or so it [quoted text clipped - 3 lines] >since I bought it back in Feb and this all started in mid June. Any >ideas? Vacum hoses on a diesel? There is a vacum pump to run ventilation control. THose engine where known for injector pump issues with age and they were also quite senitive to water in fuel. (check filter/seperator for water) ----------------- TheSnoMan.com Wouldn't that set off the water in fuel light? Could it be that fuel pump that is located under the drivers side seat? > >My 94 6.5 will start up fine, but about once a day it will stop running > >after a couple of mins. after you let it cool down for a min or so it [quoted text clipped - 10 lines] > ----------------- > TheSnoMan.com >Wouldn't that set off the water in fuel light? Could it be that fuel >pump that is located under the drivers side seat? It should (the light) but not always. By pump I am refering to main injector pump. They were known to last 100K or so and when they start to go bad they can have running issues. The good part is that they are not that expensive to replace on that engine vs newer ones where you will just about cry if you have to fix one of those out of warranty. Other than the pump, they are pretty reliable and i have seen some that have gone close to 300K without a overhaul and still run well. ----------------- TheSnoMan.com I found out that the transfer pump wasn't getting any power so I fixed that but I took it around the block and stood on it and when it shifted it fell flat on its face, is the any way to check the injector pump, I heard that if it stall and you have to wait a little before it will start it isn't the injector pump yukondiesel > >Wouldn't that set off the water in fuel light? Could it be that fuel > >pump that is located under the drivers side seat? [quoted text clipped - 8 lines] > ----------------- > TheSnoMan.com >I >heard that if it stall and you have to wait a little before it will >start it isn't the injector pump Not sure I share that view. Injector pumps were the weak link on that motor which is basically a improved 6.2. Glow plugs next but they are not that bad to change or expensive either. At this stage you might want to get a pressure gage to monitor transfer pump pressure and see if it is keeping up with pump or not and I assume you have replaced the filter recently too? ----------------- TheSnoMan.com >>I >>heard that if it stall and you have to wait a little before it will [quoted text clipped - 8 lines] > ----------------- > TheSnoMan.com Where is the transfer pump ? I was told I should hear it run on ours but I can't hear it and don't know where it is to see for sure... On my truck and on my brothers truck it is located under the drivers door on the inside of the frame rail yukondiesel > >>I > >>heard that if it stall and you have to wait a little before it will [quoted text clipped - 10 lines] > Where is the transfer pump ? I was told I should hear it run on ours but I > can't hear it and don't know where it is to see for sure... I replaced the fuel filter about 5K ago, is there any way to check the injector pump yukondiesel > >I > >heard that if it stall and you have to wait a little before it will [quoted text clipped - 8 lines] > ----------------- > TheSnoMan.com >I replaced the fuel filter about 5K ago, is there any way to check the >injector pump >yukondiesel Really need a good diesel shop for that. ----------------- TheSnoMan.com >>My 94 6.5 will start up fine, but about once a day it will stop running >>after a couple of mins. after you let it cool down for a min or so it [quoted text clipped - 10 lines] > ----------------- > TheSnoMan.com Vacuum runs the turbo dump doesn't it ? Ours has a vacuum hose to the turbo and a bank of solenoids. |
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