C5500 Gas Tank Problems????

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Loudogz74	C5500 Gas Tank Problems????		Lead	[-]
Posts: 418 12/24/2007 05:50 New York State	Tags : None I've heard of many problems with the C5500; but has anyone here heard of RUST building up in the tanks? Spoke with Jan Brothers and he said its happened before.....just want to hear if others are having this problem as well. Gathering info for the boss so he can go back to Chevy. Thanks. Lou K.K Towing Long Island City, NY Cell# 516-351-0866
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michael212		#1	[url]	[-]
Posts: 2555 01/01/2008 02:16 2005 Top Ten WreckMaster #020905 Featured Member December 2006 Washington State	We just had a 2005 C-5500 in the dealership. They said it "junk' in the tank. Truck only has 11k miles on we bought it early this year NEW!
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towman79		#2	[url]	[-]
Posts: 72 01/05/2008 22:56 Texas	if you have junk in the tank of a 5500 somebody put it there, it has a plastic tank
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bigslim101		#3	[url]	[-]
Posts: 495 01/07/2008 19:12 WreckMaster #040745 Utah	Mine is steel, I climb on it every day to get in the truck. We havent had problems yet, but only 8k on it.
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thook99		#4	[url]	[-]
Posts: 206 01/09/2008 23:02 Incomplete Directory Listing	Lou, I was having a nightmarish problem with junk and water getting in. At first we thought it was sabatoge so I put locking caps on. We still were gettin water and junk. Dealer had the truck for ten days . What they found was the rear tank is shaped in a way that water lays on top and the seal was no good. So every time we had rain the dirt and water were runing right into the rear tank. Then the transfer pump shot it into the front tank and of course into the filter. If we had steel tanks we would probably have rust. Hope this helps, we sealed the back tank and so far have had no more problems. Our vehicle is a C-5500 2004 with the tanks under the bed mounted on both sides of the rear axle. Sean
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slctowguy		#5	[url]	[-]
Posts: 1 01/11/2008 13:39	what kind of responses are guys getting from the dealership with regard to the "contaminants" in the c5500 fuel tanks? we just spent a fortune to get our 2004 c5500 out and running again. they said that water was either in the fuel that we got from the service station or that water somehow managed to get into the filler neck via a bad cap. additionally, the fuel sensor that is supposed to indicate water in the tanks "doesn't work well" according to a GM representative. I'd like to hear all kinds feedback please.
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Mcdonough Truck		#6	[url]	[-]
Posts: 216 01/11/2008 16:53	I have to agree with the guys on the tanks being plastic, you say you step on the tank to get in the truck daily C5500 tanks are inside the frame rail they are not a step tank, I did hear once they were going to offer a step tank on the 4 wheel drive version? Are you sure this is a factory tank? Chris Chitwood Chris Chitwood McDonough Truck 404-569-4723-Cell Chitwood72@Bellsouth.net Distributor of Quality Towing Lines from: B&B Industries, Dual-Tech and Recovery Solutions!
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slctowguy	junk in the tank	#7	[url]	[-]
Posts: 2 01/11/2008 17:28	i think that the water (ice, snow) collects on the top of the tank and get sucked into the tanks. as we all know, water has a way of getting into whatever it wants. the rubber seal on the top of the (plastic tank, in this case) contracts and expands as weather conditions change. additionally, i believe the continuous suction that is created through use draws the fuel from the rear tank to the front tank and through the fuel filter. this continuous contacting and suction placed on the seal overtime (or hours of use) compromises its integrity. Once the water gets in, it is drawn through the system and into the filter and wallah! GM will deny warranty because now there is water in the tanks. They are obviously being louder in their water-in-tank argument than they are in their we-have- a- bad-seal-design-on-the-tank argument. i've spoken to a few guys and it seems like there is an increase in tank junk during winter months. my problem is that GM will refuse to honor their warranty if contaminats are found, ALTHOUGH, the problem very well maybe the defective GM seal that is allowing water into the tanks in the first place. GM has also recommended that the nipple on the bottom of the fuel filter be loosened to allow water to be release, if there is any, and retightened. this a problem because the tranny dip stick is right in the way and very difficult to manuever your hand to retighten. in fact, if the little nipple isn't aligned properly (the treads strip) GM will not warranty the filter at a cost of $100. Additionally, the sensor indicating water/junk in the tank doesn't work and if that doesn't work and extensive damage occures as a result of a defective part, why won't GM honor/acknowlege the problem? I thought politics were a washington thing. Now i'm learning it's rampant at GM. Sorry if my post is rambling, my '04 c5500 just got out of the dealership a few days ago and last night my '07 c5500's engine light went on and we took it to the dealership today and the fuel filter had to be changed (as it wouldn't go over 30 mph). the truck only has 8650 miles. so yes, i'm pissed. Last Edited By: slctowguy 01/11/2008 18:16. Edited 1 time.
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towman79		#8	[url]	[-]
Posts: 73 01/17/2008 17:13 Texas	bigslim, if you have side tanks your truck is not a 5500
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bigslim101		#9	[url]	[-]
Posts: 541 01/17/2008 17:38 WreckMaster #040745 Utah	Look under the drivers door. That is a step tank. it is a 4x4 2007 c5500 duramax/allison. I can photo copy the title if you still dont believe me.
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twmaster		#10	[url]	[-]
Posts: 1 01/18/2008 12:10	Now that is slick. 4X4 5500.... So far I have had zero problems with trash in my tanks on my '07 5500 with 78K miles on it. I just wish I could have got my truck with those step tanks. -- Mike N Twmaster & Co. Auto Transport Laurel, MD The Grand Wazoo
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Mcdonough Truck		#11	[url]	[-]
Posts: 224 01/19/2008 18:28	Its like I said in my previous post I thought it was only available in a 4x4 chassis.Good lucking truck!! Chris Chitwood 404-569-4723 Chris Chitwood McDonough Truck 404-569-4723-Cell Chitwood72@Bellsouth.net Distributor of Quality Towing Lines from: B&B Industries, Dual-Tech and Recovery Solutions!
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generaltopkickGMC	tank problems	#12	[url]	[-]
Posts: 6 01/24/2008 19:41	C5500 tank problems are rare. I have sold a large amount of C5500's over the years and I haven't had any issues other than an occasional sending unit stop working. I would suggest contacting 1 800 GM CARES if the dealership you are dealing with doesn't help you with resolving the situation. As for the fuel tanks that are inside the rail, they are definitely plastic. The saddle tanks are available but not widely used. There might have been a problem with the supplier that shipped the saddle tank and it could be defective if you are experiencing rust. I will check with my shop foreman to see if there is anything I can do to help you with the problem. Herb Ash generaltopkick@yahoo.com
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Kodiak		#13	[url]	[-]
Posts: 1 06/17/2008 14:00	My 2005 C5500 RV had a problem with the engine light coming on and not being able to go over 2500 RPM without the transmission down shifting to a lower gear. The Dealer said I had the fuel filter replaced, done, but now I am getting only 8 MPG instead of the normal 11, also I have no pickup, have to put the peddle all the way to the floor to get it started.. I ran two tanks (60 gallons each) through since the filter change. Do I need to change the filter again? OR.......?
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working4mykids		#14	[url]	[-]
Posts: 18 06/28/2008 00:45	only use a OEM filter with the durmax, alot of aftermarket ones just arnt holding up, and yes you will need tochang it alot do to the very fine microne filtering it does it gets pluged fast, but its cheaper then injectores. GM did have a big problem with metal tanks, they were not primed before painting them and have alot of flaking/rusting problems. They also have alot of sending unit problems. i hated working on the fuel tanks do to all the problems they had with them. when i replaced a sending unit on a plastic tank i would clean the top of the tank and then seal it with a tube of sealer making chanels for the water to run off the tank and out of the way.
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