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Old 01-28-2012, 03:04 PM
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Help with AE

My truck has been running really rough. I recently did all the fuel tank mods and it is still acting like its getting air. I ran a buzz test and all cylinders fired. On the contribution test the results were 1 at 1.5, 3 at 3.4, and 8 at 5.1. Any cause for concern or should I look elsewhere for my problems? I'm really thinking the gasket for the fuel filter might not be sealing properly and sucking in air through there. I have already replaced the lines from the tank to the fuel pump, do I need to go the rest of the way and is there a way to do that? Thanks for the help.

David
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Old 01-28-2012, 04:19 PM
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Quote:
Originally Posted by merkfalc View Post
My truck has been running really rough. I recently did all the fuel tank mods and it is still acting like its getting air. I ran a buzz test and all cylinders fired. On the contribution test the results were 1 at 1.5, 3 at 3.4, and 8 at 5.1. Any cause for concern or should I look elsewhere for my problems? I'm really thinking the gasket for the fuel filter might not be sealing properly and sucking in air through there. I have already replaced the lines from the tank to the fuel pump, do I need to go the rest of the way and is there a way to do that? Thanks for the help.

David
It wouldn't be sucking air from the fuel filter, it would be squirting/gushing out of it.

IF it's sucking air, it could be from the lines.

When you scanned it, did it come up with any codes? What about the CCT? (Codes?)

What are the symptoms?
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Old 01-28-2012, 06:25 PM
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Just the codes for the contribution test on those three cylinders and a p0476. I have to push the pedal in all the way to get it started and then it surges and idles until its warmed up. I had the oil changed before I did the fuel tank mods and before it got cold. I'm wondering if the wrong oil was used and its just having trouble getting the injectors going.
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Old 01-28-2012, 06:58 PM
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Quote:
P0476{2}
EBP Pressure Above/Below Desired

P0476{3}
EP Control Valve Performance
Welcome to guzzle's Exhaust Backpressure Sensor Cleaning Maintenance Web Page

I'd start by checking the sensor/tube for blockages.

Then, did you use AE to do a KOER Glow Plug System Check?

If it's having problems starting when cold.... does it make any difference if it's plugged in first?

Any smoke when starting? Color?

when you ran the KOEO tests, was the engine cold? (Sat at least over night?)
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Old 01-29-2012, 05:58 AM
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I didn't check the glow plug system, but it was in the mid 60s so I didn't think it needed it. My truck doesn't have a block heater. People swear up and down they all had them but I've looked all over for the thing. As for the final test it hadn't been started since the day before.
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Old 01-29-2012, 06:13 AM
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I think all the motors were built with the heater. You just need to buy the cord . Ebay has a ton of them. Your should see it in the block near the oil filter.
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Old 01-29-2012, 07:52 AM
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Quote:
Originally Posted by greasyF250 View Post
I think all the motors were built with the heater. You just need to buy the cord . Ebay has a ton of them. Your should see it in the block near the oil filter.
Yeah, unless it was removed by a PO, it is there somewhere.... Look around inside the bumper, behind the driver's side tow hook. Worse case look above your oil filter, that's where the block heater is and follow the orange cable coming out of it back to the front.
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Old 01-29-2012, 01:39 PM
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Good news, I have an engine block heater! Bad news, more problems! Changed the oil and the truck started right up. Took for a test drive. Cruising good around 55mph. Got up on the highway and got on and it immediately acted like it had no fuel and died. Pulled to the side of the road, let it cool down. Went to start it and got a real loud grinding noise before it started. Drove home at 55mph no problem. Let it cool down and got under there and the starter had come loose. Tightened it up and tried to start it. Clatter and spin. Removed the starter. Looks like there are five teeth in a row half gone! The teeth on the starter are smoothed down about an 1/8 inch maybe a bit more. Not sure if thats normal or not. Can I get by with a new starter or is the flywheel going to have to be changed also? I was hoping on trading up this next week so I wasn't wanting to throw a whole lot of money at it! Hope y'all can help.

Thanks, David
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