HS2.8TGV Severe power loss. Air in fuel line? - Defender Source
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  #1  
Old January 14th, 2007, 10:05 AM
DesertRat
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Bryan Barnes
95 D90 2.8TGV
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HS2.8TGV Severe power loss. Air in fuel line?

Hello All,

Installed the HS 2.8 TGV in my Defender last July. Have 4500 miles
so far with no probelems, until now. I was driving on the highway
a few days ago and noticed a lack of power going up hills. This
got progressively worse and when I got off the highway it died
and wouldn't restart. A good samaritan came by and pulled me out
off the road and said he could probably get me going (some nice
people in rural Kentucky). He sprayed some ether into the intake and
it fired right up, then he cracked the injectors and bled them.
Ran fine after that....until I was about halfway home (halfway being
about 20 miles) and the same thing started again. Barely made it
home, left it running in driveway and bled the injectors again.
Drove around town for a few days with no apparent problems. This
morning on the way to work (about 25 highway miles) the same thing
started again and I barely limped into work. I stopped and bled the
injectors 3 times on the highway and it only seemed to help for a
couple of miles. Last few highway miles were done at about 30mph
down the shoulder.

Any ideas or help would be greatly appreciated. Thanks in advance.

Bryan Barnes
1995 Defender 90 HS2.8TGV
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  #2  
Old January 14th, 2007, 11:22 AM
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mark kellgren
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I have the 2.8 as well, but only about 2k into it. haven't experienced that issue, but sure sounds like either air in the lines OR blocked fuel filter. any progressive power loss in a fuel injected engine, diesel or petrol, leads me to check for blocked fuel filters, as the restriction will cause decreasing fuel pressure and hence, decreasing power. Do you have a sedimenter? if not, maybe water in the tank got to your filter. I'll be watching this post. let me know how it turns out.

the good news is, with a 2.8 or 300tdi, the suspect list is very short.
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  #3  
Old January 14th, 2007, 11:46 AM
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Jim Cheney
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It classic fuel filter stuff. They can do wierd things because stopping or vibrating the filter is sometimes enough to eek some extra fuel through a fundamentally clogged filter. Are you using the Land Rover fuel filter? If so, the one from an 84 diesel rabbit is the same and available at Napa. My first fuel filter clogged hopelessly at 6k miles, so you should change them with the oil change.
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  #4  
Old January 14th, 2007, 12:24 PM
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Julien Dalbin
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Agree with that, first thing to do is change your fuel filter.
I use Mann filter and change it every 3k miles (very bad
fuel quality down here...). Mann's works fine, i can get
ref. if you're interested.
Good luck
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  #5  
Old January 14th, 2007, 12:40 PM
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One of our ambulances at work had the same problem. The fuel filter was clogging up after a little bit. Changed the filter out and the truck runs fine. Side note the inside of the fuel tank was apparently comming apart and was clogging the filter.
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  #6  
Old January 14th, 2007, 10:01 PM
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jim pendleton
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Better get it sorted. You are doing damage to your injection pump running it dry like that. The lift pump may have seen damage as well if the restriction is present to long. So if you find a cloged filter or fuel line and it stll has problems then you have damaged the lift pump and need to replace it. I hope your fuel system was routed correctly.

Good Luck
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  #7  
Old January 16th, 2007, 01:28 PM
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Bryan Barnes
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Thanks guys for the filter recommendation. It appears to have solved the problem. It didn't occur
to me the filter could clogged after only 4500 miles. Lesson learned. Like Jim said, I hope the lesson
didn't cost me a fuel pump. It's been running fine for 100+ miles now without a hiccup.

Thanks again.
Bryan
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  #8  
Old January 16th, 2007, 08:28 PM
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jim pendleton
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We will all keep our fingers crossed for you.

Take Care
JP
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  #9  
Old January 18th, 2007, 06:49 AM
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Sandro
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Domestic regulations for diesel fuel filtering are pretty lax. Evidently, there's a lot of crap included when you purchase petroleum-based diesel. I wonder if this is what clogged your fuel filter.
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  #10  
Old January 18th, 2007, 07:57 AM
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Randy
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Bryan, always keep an extra filter on hand. They are cheep enough.. I write the milage and date on mine for a reminder as well..
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  #11  
Old February 16th, 2007, 09:51 PM
Michael
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Michael
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Racor B32016 also spins onto oem filter head. has a cool clear bowl on the bottom. pricey though.

Follow-up Post:

Anyone know what micron "level" the genuine land rover fuel filters have? the NapaGold ones?
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  #12  
Old February 19th, 2007, 05:20 PM
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Mike Hammond
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I'd agree with the fuel filter. Mine displayed exactly those intermittant power problems. I think bleeding releases the vacume and all the crap falls away from the filter only to get sucked back up as the engine runs again. I had a filter in the pick-up pipe in the tank and it was a birds nest of junk. If left standing for a few days the problem would go away for 10 -15 miles, then power would progressively drop, I'd stop, fiddle about with the fuel lines, vacume would diminish and the crap would fall off the in tank filter things would seem fine only to recurr in a couple of miles. I threw away the in tank filter and replaced the inline filter but not before the fuel pick-up pump had destroyed itself.
Change those filters PDQ
Blow through the fuel lines and check the tank for debris.
The crap in my fuel system came from an old Jerry Can, the paint on the inside came off
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  #13  
Old February 24th, 2007, 08:35 AM
Michael
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The NAPA Gold fuel filters, like the 3472 for the 1984 rabbit, have a 10 micron rating.
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