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#1 |
Embrace the Redneck
Join Date: Jan 2004
Location: Cabot, AR
Posts: 1,334
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I filled my new pickup up today and when i got in i smelled gas real bad. Thought it was just b/c i just filled up. looked between the bucket seats and i've got a pool of Fuel on the sending unit and draining down the tank.
It looks like it't comming from the electric connection of the sending unit and it pours out when i take a left turn. I've got another tank in the bed of the truck that came from a 67 and the one that's hooked up has all of the vents hooked up to it and they've been all plugged off. should i switch tanks or sending units?? sswj
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'01 Camaro Son, you just can't get there from here... |
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#2 |
Registered User
Join Date: Jan 2000
Location: Wyoming USA
Posts: 2,445
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I would start with the sending unit,There is a big o-ring that goes with it that might be the culprit allso.
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2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327 Last edited by kaycee; 04-21-2005 at 06:32 PM. |
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#3 |
Registered Cruiser
Join Date: May 2002
Location: Las Vegas NV
Posts: 2,230
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Do you have a vented cap? If everything's plugged off pressure can build if the cap isn't vented. You might try switching sending units, and installing it with a new seal..
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I intend to live forever. So far, so good. |
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#4 | |
Embrace the Redneck
Join Date: Jan 2004
Location: Cabot, AR
Posts: 1,334
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Quote:
i've got the locking cap that i used on my other pickup and no, it's not vented, i don't think. who carries that big o-ring? thanks sswj
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'01 Camaro Son, you just can't get there from here... |
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#5 | |
Registered Cruiser
Join Date: May 2002
Location: Las Vegas NV
Posts: 2,230
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Quote:
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I intend to live forever. So far, so good. |
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#6 | |
Embrace the Redneck
Join Date: Jan 2004
Location: Cabot, AR
Posts: 1,334
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Quote:
can i get one at the part's store? and how do you remove the sending unit? sswj
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'01 Camaro Son, you just can't get there from here... |
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#7 |
Senior Member
![]() ![]() Join Date: Jan 2005
Location: CA
Posts: 5,517
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You might be able to special order the seal at a parts store, but I doubt they'll have one in stock. You can order one from www.gmcpauls.com for $2.95 plus shipping.
To remove the sending unit, first detach the fuel line and the brown wire. Then take a hammer and a big straight-blade screwdriver and tap on the tabs of the locking ring so that the locking ring rotates counterclockwise. You'll have to tap a little on one tab and then a little on another, working your way around. Once the ring rotates a little ways (somewhere around a quarter of a turn or so), it will pop loose. |
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#8 |
Registered User
![]() Join Date: Apr 2004
Location: The Other Maine!
Posts: 2,236
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This is a new in pack vented chrome cap that will solve the pressure problem.
I had the same problem with my 68 when I put on a non-vented locking cap. 9.99 shipped to your door if interested.
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1968 Chevy 4x4 307 4 speed |
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#9 | |
Embrace the Redneck
Join Date: Jan 2004
Location: Cabot, AR
Posts: 1,334
|
Quote:
do they make a locking vented cap?
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'01 Camaro Son, you just can't get there from here... |
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#10 |
Registered User
![]() Join Date: Apr 2004
Location: The Other Maine!
Posts: 2,236
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Yes, they make locking ones. You just have to make sure it is vented since they have both kinds.
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1968 Chevy 4x4 307 4 speed |
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#11 | |
Registered User
Join Date: Nov 2004
Location: Central Ohio
Posts: 215
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Quote:
Would you be kind enough to list the part number. I ask as I recently got what was supposed to be a vented cap for my 71 and it builds a LOT of pressure or vacuum depending on conditions and I'll bet it is either the wrong one or needs the pressure spring cut down. Thanks ![]()
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71 K20 350/350/205, dealer air, 4" lift, Flowtech,Edel 1406 on 2101, procomp HEI,4.10's, 33x12.50x16.5 BFG MT's on slots. 4 wheel disc brakes. My lame K20 page My lame Eaton disc brake page ![]() |
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#12 |
Senior Member
Join Date: Jun 2003
Location: Westminster, CO
Posts: 3,071
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I would start thinking about re-locating your tank...out of the cab and under the bed!
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Alex 1971 Lil' Red 350 SBC 700R4 |
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#13 |
71 Cheyenne SWB Fleetside
Join Date: Jan 2005
Location: Sarnia, Ontario, Canada
Posts: 403
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Mike,
is that cap your selling is that a repro cap? exactly like the original or simillar to the original? joel
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#14 |
Registered User
![]() Join Date: Apr 2004
Location: The Other Maine!
Posts: 2,236
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Yes Joel, It is a perfect repo vented cap that I have used on all my trucks except the 72's. No leaks,
perfect chrome and if you wish to remove the warning label, no prob. Just not for 72 models, due to diff. size fill tubes due to Darn un-leaded fuel! I use this cap unless leaving the truck in a high crime area, ha-ha not likely up here. Then I would switch to the locking chrome if parked in such an area for a time if worried about a gas rip-off? I think the plain chrome looks way better than the keyed cap, more original?
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1968 Chevy 4x4 307 4 speed |
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#15 |
Registered User
Join Date: Dec 2003
Location: ARIZONA
Posts: 13
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speaking of full tanks and gas leaks, when I fill mine up all the way fuel starts pouring out as it tops off.. Is this just the tank? I am concerned about my fuel evaporating from this.
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#16 |
Registered User
Join Date: Dec 2004
Location: Manchester, NH
Posts: 64
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DO NOT use the vacuum at the "do it yourself carwash" to suck the gas out of the cab.
Yes I am speaking from experience |
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#17 |
Fixing my 67, & loving it
Join Date: Jun 2004
Location: Bridge City, Texas
Posts: 524
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I know it was not funny at the time, but now.
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Email address- inspector722@aol.com Zip Code- 77611 Shipping- DHL & USPS Working on: 67, large back glass, 307 V8, 200 4R, 3.73 rearend, Short Stepside Bed ![]() |
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