Hi all, and thanks in advance for any help. now on to the fun stuff. am having a reoccuring water in fuel light. i know that there is ABSOLUTELY NO WATER IN MY FUEL. I have drained the filter, replaced the filter, replaced the WIF sensor, and let the truck sit outside at -40 and about 2 min after startup or less the stupid red light comes back on. All the dealer wants to do is to drop&drain the tank and reinstall & refuel. i read on here somewhere that the injectors can cause this, but it has none of the other problems. starts great, no smoke, idles smooth, no fuel in the crankcase, and about 9mpg in town driving including lotsa warmup time when its cold. and when its warm am gettin like 14ish.
ANY IDEAS?????????????
__________________ 2001 Silverado 2500hd cc lwb 86000miles. Homemade high idle, 2way autostart. No other mods yet but soon enough.
1985 chevy 1ton crewcab long bed. 12" superlift, ord crossover steering, 456 gears detroit locker in rear tracloc in front, 39" boggers, 6.2 with a 465trans and 205 tcase.
Last edited by andington : 04-22-2008 at 07:34 PM.
anyone at all have any oddball ideas about this or am i just gonna have to sell the thing. im not going back to the dealer here unless i have at least some kind of idea what is going on with this thing. i drained the fuel filter again tonight after work got NO WATER from it, bled system started truck and in like 50 seconds at 1200 rpm on the high idle the waret in fuel light came back on. I really love the truck but how do i know if it is really having problems if im just ignoring the lights that come on.
__________________ 2001 Silverado 2500hd cc lwb 86000miles. Homemade high idle, 2way autostart. No other mods yet but soon enough.
1985 chevy 1ton crewcab long bed. 12" superlift, ord crossover steering, 456 gears detroit locker in rear tracloc in front, 39" boggers, 6.2 with a 465trans and 205 tcase.
Might be a bad WIF sensor,it is plastic and can get damaged with just ruotine maintance,don't know for sure but i would be sure b-fore I'd replace anything really expensive
has a brand new sensor that i installed at lunch today. along with the stupid blue gm filter that leaked so i had to replace it tonight when i got home, at least napa is just right around the corner.
__________________ 2001 Silverado 2500hd cc lwb 86000miles. Homemade high idle, 2way autostart. No other mods yet but soon enough.
1985 chevy 1ton crewcab long bed. 12" superlift, ord crossover steering, 456 gears detroit locker in rear tracloc in front, 39" boggers, 6.2 with a 465trans and 205 tcase.
no the housing is fine some of the gm filters were faulty the inner black portion of the housing is loose inside the blue plastic outer can and the o ring on the top that sits in the groove where the two parts meet cant hold the fuel in.when you pump up the system to prime it when replacing the filter you can use the hand pump to pressurize the system and check for leaks. well on the filters that arent crimped properly the inner part will tighten to the housing but the outer portion isnt fully crimped and under pressure will blow fuel out from the under side of the o ring, they will also pull in air in the vacuum operated system that the dmax uses if you dont notice it and are running it hard. know lots about the maintenance of the truck just never been anywhere into the computerized diagnostics on it yet. and am not ready to drop the 4k just to buy a tech 2 to start learnin how to diagnose it.
__________________ 2001 Silverado 2500hd cc lwb 86000miles. Homemade high idle, 2way autostart. No other mods yet but soon enough.
1985 chevy 1ton crewcab long bed. 12" superlift, ord crossover steering, 456 gears detroit locker in rear tracloc in front, 39" boggers, 6.2 with a 465trans and 205 tcase.
I'm assuming that you did not fix your problem last week. I also have an '01 and recently changed out the fuel filter. While doing this I broke one of the WIF sensor leads, which looked like it had been stressed & started corroding right where it goes into that little plastic P.O.S. I left it unplugged and drove it for a couple weeks until I got around to replacing the WIF assembly, truck didn't seem to care whether or not it was plugged in, ran fine & no warning lights (SES or otherwise).
My thoughts on your situation- try leaving it unplugged (if you're sure there actually is no water) & see if you still get the light coming on. You may be able to track it down as a short in the other end of that wiring circuit.
Good luck.
__________________ '01 2500HD Duramax LB7, Xtra cab - short box
w/ 8' Blizzard Plow, otherwise bone stock
oh yea its a rubbed wire for the sensor. they found it when they were tearing it down to put injectors in this week. i lost 3 injectors on 04/05/08 and had it towed in to the stealership. they knew absolutely nothiing about the injector 7yr200000mile warranty so thanks to OB1 here on the board i handed them a copy of the tsb and then they pulled the truck up on the master computer that they have. low and behold its covered until 05/13/08 under the recall. WHEW big relief cause they quoted $6500 for the repair at the shop. if warranty hadnt covered it i would have just had it towed home and done it my self. but i didnt have to. now i just want it to quit snowing because the 400hp 2wd 1970 chev im driving right now is not fun in the snow.
__________________ 2001 Silverado 2500hd cc lwb 86000miles. Homemade high idle, 2way autostart. No other mods yet but soon enough.
1985 chevy 1ton crewcab long bed. 12" superlift, ord crossover steering, 456 gears detroit locker in rear tracloc in front, 39" boggers, 6.2 with a 465trans and 205 tcase.
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"WIF" problems 
stupid truck 
WHEW big relief cause they quoted $6500 for the repair at the shop. if warranty hadnt covered it i would have just had it towed home and done it my self. but i didnt have to. now i just want it to quit snowing because the 400hp 2wd 1970 chev im driving right now is not fun in the snow.
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