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Old 02-12-2010, 04:37 PM   #21
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I have two diesels, and I had an aftermarket fuel filter assembly put on both of them. It turns a half-hour job into a 5-minute job. Just one nut to loosen to lower the bowl that holds the filter.
Im gonna look into that..
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Old 02-12-2010, 06:50 PM   #22
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Im gonna look into that..
Yeah. They had spin-on fuel filters before, and they cost almost 50 bucks. It was 100 bucks to have it changed at the dealership. I got "replacable element" filter assemblies installed (about 250 bucks), and the element only costs 10 bucks for a 2 micron filter. Hand to God, it only takes 5 minutes to change. I can do it in the morning before I roll out (recommend latex gloves to keep from smelling like fuel all day). Yeah, you really can't change your diesel filter too often. I have a calendar reminder in Outlook that pings my phone every 3 months. That might be too often, but for 10 bucks and 5 minutes work, it's no big deal.
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Old 02-12-2010, 07:11 PM   #23
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I have two diesels, and I had an aftermarket fuel filter assembly put on both of them. It turns a half-hour job into a 5-minute job. Just one nut to loosen to lower the bowl that holds the filter.
What kind of trucks are you running?
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Old 02-12-2010, 07:14 PM   #24
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Originally Posted by MDShunk View Post
I have two diesels, and I had an aftermarket fuel filter assembly put on both of them. It turns a half-hour job into a 5-minute job. Just one nut to loosen to lower the bowl that holds the filter.
What kind of trucks are those?
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Old 02-12-2010, 07:21 PM   #25
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What kind of trucks are those?
My only two diesels is an old '85 Ford F-800 digger derrick and a '98 Mack 90 foot tandem bucket. All of my every-day trucks are all gas. I can actually do a burnout in the Mack in the right gear (tandem rear axels, no less).
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Old 02-16-2010, 07:24 PM   #26
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I've had three diesel vehicles, and the fuel filter can clog at lower temperatures due to wax crystals forming in the diesel fuel. The fuel is not "gelled", it will still flow, but the wax crystals will not pass through the fuel filter, thus starving the engine of fuel. The problem is even worse if you have a super-fine fuel filter (such as a 1-micron, many diesel filters are 10-15 micron).

The temperature at which the wax crystals start forming is called the "cloud point". Diesel fuel additives (including #1 diesel/kerosene) lower the cloud point. Google "cloud point" and you'll have plenty to read.

My 1996 VW Passat TDI actually has a thermostatically-controlled fuel filter housing stock--it takes the warmer return fuel from the injection pump and routes it back through the filter housing if it is below a certain temperature, otherwise it bypasses the filter and goes directly back to the tank.

This could be the issue. Often the vehicle will start and run for a short time, and then when enough of the fuel filter is blocked off, it will starve for fuel and die.

Otherwise, you may want to consider on-board automatic battery maintainers/chargers, such as this one:

http://store.schumachermart.com/se-1-12s.html

Many vehicles that are driven primarily in short-trip driving, especially in colder weather when electrical loads are heaviest (headlights, wipers, defroster fans, etc), will not keep the vehicle battery fully charged. Using a small on-board charger with the vehicle plugged in overnight or over the weekend will help keep the battery at full charge and make it last significantly longer.

And battery capacity is significantly reduced with cold weather--if your battery is only 50% "full" to start with, which may start the vehicle just fine at higher temperatures, gets cold, you can see another 50% reduction in battery capacity. That's enough to forget about starting a diesel!

Been there, done that, and boy is it frustrating when you go out to start up the vehicle in the morning before work and it won't start--grrr!
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Old 02-16-2010, 07:45 PM   #27
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I've had three diesel vehicles, and the fuel filter can clog at lower temperatures due to wax crystals forming in the diesel fuel. The fuel is not "gelled", it will still flow, but the wax crystals will not pass through the fuel filter, thus starving the engine of fuel. The problem is even worse if you have a super-fine fuel filter (such as a 1-micron, many diesel filters are 10-15 micron).

The temperature at which the wax crystals start forming is called the "cloud point". Diesel fuel additives (including #1 diesel/kerosene) lower the cloud point. Google "cloud point" and you'll have plenty to read.

My 1996 VW Passat TDI actually has a thermostatically-controlled fuel filter housing stock--it takes the warmer return fuel from the injection pump and routes it back through the filter housing if it is below a certain temperature, otherwise it bypasses the filter and goes directly back to the tank.

This could be the issue. Often the vehicle will start and run for a short time, and then when enough of the fuel filter is blocked off, it will starve for fuel and die.

Otherwise, you may want to consider on-board automatic battery maintainers/chargers, such as this one:

http://store.schumachermart.com/se-1-12s.html

Many vehicles that are driven primarily in short-trip driving, especially in colder weather when electrical loads are heaviest (headlights, wipers, defroster fans, etc), will not keep the vehicle battery fully charged. Using a small on-board charger with the vehicle plugged in overnight or over the weekend will help keep the battery at full charge and make it last significantly longer.

And battery capacity is significantly reduced with cold weather--if your battery is only 50% "full" to start with, which may start the vehicle just fine at higher temperatures, gets cold, you can see another 50% reduction in battery capacity. That's enough to forget about starting a diesel!

Been there, done that, and boy is it frustrating when you go out to start up the vehicle in the morning before work and it won't start--grrr!
Thanks....! Where the hell ya been buddy...? I appreciate the info.
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