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how to drop the fuel tank on a 1990 C1500


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zboy56
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Nov 13, 2012, 3:29 PM

Post #1 of 24 (3956 views)
  post locked   how to drop the fuel tank on a 1990 C1500  

i was trying to change the fuel filter when the fuel line twisted and broke and need to drop tank to get at it


Tom Greenleaf
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Nov 13, 2012, 3:36 PM

Post #2 of 24 (3944 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

Quick look this fuel filter is on frame and they do get rusted/stuck and twist up lines to replace. There are kits to repair the lines properly. Not sure why you want to remove fuel tank as the filter isn't near the tank,

T


zboy56
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Nov 13, 2012, 3:56 PM

Post #3 of 24 (3922 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

the part of the line it twisted is too close to the tank and frame to get where the connector for the lines are at


Tom Greenleaf
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Nov 13, 2012, 4:32 PM

Post #4 of 24 (3907 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

OK - They could break there too and into a fuel pump assembly! Pump should look like this......

Those flare connection MIGHT be trouble too. If you have to begin with getting the fuel out of the tank. Then this is listed as the procedure for removal if nothing else breaks or rusted in just dropping the tank.............
REMOVAL & INSTALLATION

  1. Disconnect the negative battery cable.
  2. Drain the tank.
  3. Raise the rear of your vehicle and support it with jackstands.
  4. Remove the clamp on the filler neck and the vent tube hose.
  5. If equipped, remove the gauge hose which is attached to the frame.
  6. While supporting the tank securely, remove the support straps and insulators.
  7. If equipped, remove the fuel tank shield.
  8. Lower the tank until the gauge wiring, electrical connections and all hoses can be removed.
  9. Remove the tank.


To install:
  1. Raise the tank until all hoses, electrical connections and wiring can be attached.
  2. Raise the tank into position, and If equipped, install the tank shield.
  3. Install the tank retaining straps. Tighten the strap retainers to 33 ft. lbs. (45 Nm). Make certain that any anti-squeak material is replaced during installation.
  4. Install the clamp on the filler neck and the vent tube hose.
  5. Lower the vehicle.
  6. Fill the tank and check for leaks.
  7. Connect the negative battery cable.

*********** It's old so hard to say what battles you may run into, T


zboy56
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Nov 13, 2012, 4:47 PM

Post #5 of 24 (3901 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

are there any bolts or brackets that hold the tank up on the top side of it?


Hammer Time
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Nov 13, 2012, 4:49 PM

Post #6 of 24 (3896 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

2 straps, lines, hoses, filler pipe and wires



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Discretesignals
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Nov 13, 2012, 4:53 PM

Post #7 of 24 (3887 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

You may have to drain the tank (if it is over 1/4 full) if your going to be laying on the ground doing this.





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zboy56
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Nov 13, 2012, 4:53 PM

Post #8 of 24 (3886 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

ok i have taken the straps off and all lines/hoses i get to but the tank will not come down from the frame, so what else could be holding it up?


Hammer Time
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Nov 13, 2012, 4:56 PM

Post #9 of 24 (3880 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

Unless it has a metal shield around it, there is nothing else holding it except maybe sticky sealing tape.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



zboy56
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Nov 13, 2012, 4:59 PM

Post #10 of 24 (3874 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

Are you certain that nothing else could be holding it because if i try to wiggle it or push it the whole truck moves?


Discretesignals
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Nov 13, 2012, 4:59 PM

Post #11 of 24 (3873 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

The front strap is actually bolted to the left frame by four bolts. You have to take the four bolts out. Don't forget to remove the ground from the frame by the filler neck. Most people forget about that and then wonder why the fuel pump doesn't work later.

Keep a fire extinguisher near and don't use a drop light. That's all you need is to have a drop light hit the ground and catch everything on fire. The tank is going to be heavy if there is over a 1/4 tank of fuel in it.





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(This post was edited by Discretesignals on Nov 13, 2012, 5:02 PM)


zboy56
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Nov 13, 2012, 5:02 PM

Post #12 of 24 (3867 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

where these 4 bolts at because i never saw them?


(This post was edited by zboy56 on Nov 13, 2012, 5:08 PM)


Discretesignals
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Nov 13, 2012, 5:10 PM

Post #13 of 24 (3855 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

The front strap has a brace that is bolted to the driver's side frame. Look at the frame and you'll see the four bolts that have to come out. Should be near the emergency brake cable equalizer.





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zboy56
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Nov 13, 2012, 5:41 PM

Post #14 of 24 (3837 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

Discretesignals i don't see those bolts or the bracket you were talking about.


Discretesignals
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Nov 13, 2012, 5:51 PM

Post #15 of 24 (3834 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

If you have the straps off and there isn't anything under the fuel tank, it should come down. Is it even loose?





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zboy56
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Nov 13, 2012, 5:53 PM

Post #16 of 24 (3831 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

no it won't budge or move any direction


Discretesignals
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Nov 13, 2012, 5:55 PM

Post #17 of 24 (3828 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

Is there anyway you can take some pictures, so we can see what you dealing with? Upload them up to a video hosting or picture site and send us the link?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


zboy56
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Nov 13, 2012, 5:56 PM

Post #18 of 24 (3826 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

i could that tomorrow, i would do it now but it's dark out and starting to get cold.


Discretesignals
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Nov 13, 2012, 6:00 PM

Post #19 of 24 (3821 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

Probably would be better to work on it when there is light anyway. Don't understand why it doesn't want to come down if you have the straps removed.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Nov 13, 2012, 6:01 PM)


Hammer Time
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Nov 13, 2012, 7:00 PM

Post #20 of 24 (3813 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

The 4 bolts that DS refers to constitute a support arm under the front of the tank and the tank does have a shield around it.





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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



zboy56
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Nov 14, 2012, 2:19 PM

Post #21 of 24 (3797 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

guys no clue what happened but today at about noon i went out to look at the tank again and it was hanging down on the straps and i was able to move it.


Hammer Time
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Nov 14, 2012, 2:43 PM

Post #22 of 24 (3792 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

It was stuck on the sticky tape



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



zboy56
User

Nov 17, 2012, 5:28 AM

Post #23 of 24 (3755 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

well i got everything put back together yesterday and now my truck is running fine so thanks for the help. Smile


Hammer Time
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Nov 17, 2012, 5:39 AM

Post #24 of 24 (3748 views)
  post locked   Re: how to drop the fuel tank on a 1990 C1500  

You're welcome

Question closed with resolution



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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