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  #1  
Old 02-15-2011, 10:41 PM
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Join Date: Jun 2006
Location: Southeast
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Gas cap problem

A few months ago, late at night, I left my fuel cap at a filling station. I bought a replacement cap from someone on this forum, but it was from a 300sd, mine's a 300d. So right off the bat, maybe the cap was never meant to fit my car, even though it seemed to fit.

Every once in a while, I have trouble taking the cap ...OFF. I can't put fuel in the car! I turn it, and turn, and turn, and turn, and it won't come off. I push in while turning, pull out while turning, nothing works. Eventually, it comes off.

What can go wrong with a fuel cap???? It does have the metal ring on the underside and an area that looks like it should notch into. The 2 are separated. When I turn the metal part into the plastic notched area, it seems like it's supposed to be there, but nothing seems to fix the problem.

The cap goes on fine for the most part.

Any ideas?

1991 300d, 155k

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  #2  
Old 02-15-2011, 10:44 PM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 38,604
get another cap!
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
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  #3  
Old 02-15-2011, 10:45 PM
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DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,832
got a pic? if you have a cap from an older car, the cap is a bit different. it'll work, but it'll be difficult.
My pull apart has tons of the right caps. and I have a dozen or so too... LMK.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
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My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
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  #4  
Old 02-15-2011, 11:11 PM
MBeige's Avatar
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Location: SoCal
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The replacement cap has a swivel inside that locks in place.

We have the SAME problem on our 300TE once in a while, a new one fixed it. However, it does this same problem on occasion.

That's why I kept my original cap.

However, the cap in my 190E is the same (updated type) but does NOT have this issue.

Did you get the chrome or black replacement cap?
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  #5  
Old 02-16-2011, 12:56 AM
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Location: Southeast
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Chrome cap

Quote:
Originally Posted by MBeige View Post
The replacement cap has a swivel inside that locks in place.

We have the SAME problem on our 300TE once in a while, a new one fixed it. However, it does this same problem on occasion.

That's why I kept my original cap.

However, the cap in my 190E is the same (updated type) but does NOT have this issue.

Did you get the chrome or black replacement cap?
I got a chrome cap.
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  #6  
Old 02-16-2011, 01:43 AM
josha37's Avatar
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Join Date: Jan 2011
Location: Iowa
Posts: 482
its a fuel cap... replace it

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1996 s10 zr2 with a 6.5 turbo diesel
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