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#1
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Fuel smell after engine shut down on 1991 560SEL
No fuel smell in the cabin, only after shutting the engine off after an extended drive is there a "gassy" smell under the hood. Also, the engine "stutters" for about five seconds upon start up then smooths out..... any ideas?
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#2
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Check for leak at the EHA, and for fuel present in the breather hose on the passenger side valve cover, the pressure regulator vents there if it ruptures.
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90 300TE 4-M Turbo 103, T3/T04E 50 trim T04B cover .60 AR Stage 3 turbine .63 AR A2W I/C, 40 LB/HR MS2E, 60-2 Direct Coil Control 3" Exh, AEM W/B O2 Underdrive Alt. and P/S Pulleys, Vented Rear Discs, .034 Booster. 3.07 diffs 1st Gear Start 90 300CE 104.980 Milled & ported head, 10.3:1 compression 197° intake cam w/20° advancer Tuned CIS ECU 4° ignition advance PCS TCM2000, built 722.6 600W networked suction fan Sportline sway bars V8 rear subframe, Quaife ATB 3.06 diff |
#3
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OK, I will, what is the EHA?
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#4
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"electro-hydraulic actuator", its the small black box bolted to the side of the fuel distributor.
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90 300TE 4-M Turbo 103, T3/T04E 50 trim T04B cover .60 AR Stage 3 turbine .63 AR A2W I/C, 40 LB/HR MS2E, 60-2 Direct Coil Control 3" Exh, AEM W/B O2 Underdrive Alt. and P/S Pulleys, Vented Rear Discs, .034 Booster. 3.07 diffs 1st Gear Start 90 300CE 104.980 Milled & ported head, 10.3:1 compression 197° intake cam w/20° advancer Tuned CIS ECU 4° ignition advance PCS TCM2000, built 722.6 600W networked suction fan Sportline sway bars V8 rear subframe, Quaife ATB 3.06 diff |
#5
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OK, thank you, I will check it out and report back what I find......
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#6
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[IMG][/IMG]
I too had a gasoline smell after a long drive. I could smell it the most along the driver side fender. I removed the plastic shield in the fender well and saw the one of the lines from the charcoal canister had shrunk and became shorter and was barely connected to the little valve attached to the fender. I touched it and it fell right off. I replaced it with a section of fule line. The smell is still there but much much less. I might replace the charcoal canister next. Or attempt to recodition it.
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1986 560 SEL 1960 Ranchero 1970 Cougar XR7 2002 Crown Vic Sport 1992 F150 |
#7
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OK, I spotted the fuel leak, it is dripping small amount of gas from the EHA. Question, do I tighten the screws on the EHA to stop the leak? Or, do I need to buy a new EHA? Thanks!
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#8
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I don't think you have to buy a whole new EHA, just buy the o-rings and replace those. I'm not sure, but I think some fine-tuning on the fuel injection is necessary after removing and replacing the EHA. Not 100% on this, just basing it on posts I've read here. Cheers!
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Streetside: 1987 Mercedes 300E Petrol Blue/Green 2014 Ford Mustang Grabber Blue 1999 Ford Ranger Green Dockside: 1968 Eltro 17 1985 Silverton 34C |
#9
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It's often the little green gaskets where the source of EHA leaks emanate from however the EHA bodies themselves have been known to crack.
Carefully check the EHA body. Bad news is that the EHA bodies are quite expensive new. Hopefully the problem is only the cheap gaskets. |
#10
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OK, I careflly replaced the two green "O" seals and the EHA still leaks!! I carefully examined the EHA body and from the outside I cannot see any cracks. Is it possible that the EHA could be cracked internally?
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#11
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Quote:
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