garage smells of gas
04-03-2019, 07:54 AM
#1
Instructor
Thread Starter
garage smells of gas
so I was away for a week, 928 in garage and wow it smells of gas.... you would think there was a puddle of gas on the floor... but all dry... need to get this repaired..... do you think the hose under the front passenger fender location is the culprit?
04-03-2019, 09:55 AM
#2
Team Owner
Where do you smell gas the most have you inspected the 3 way and fuel pump
04-03-2019, 10:02 AM
#3
Chronic Tool Dropper
Lifetime Rennlist
Member
Lifetime Rennlist
Member
That's a good place to start.
Meanwhile, ventilate the garage before your furnace, water heater or other casual ignition source gets you on the evening news.
You are looking for a broken Y fitting in the ventilation plumbing at the carbon canister, high and to the rear in the left front fenderwell area.
There are plenty of other places for fuel to leak. If the Y fitting isn't the problem, plan on getting the car outside. Then use a switched jumper in the fuel pump relay socket to pressurize the system as you sniff and feel every connection. The fragrant accumulation while stored points to the Y fitting, but it doesn't have to be the only leak.
If the car was extra-full of initially-cold fuel while parked, it's possible some has expanded out a vent line at the filler neck. Your nose will guide you.
Plus what Stan suggests ^^^
Meanwhile, ventilate the garage before your furnace, water heater or other casual ignition source gets you on the evening news.
You are looking for a broken Y fitting in the ventilation plumbing at the carbon canister, high and to the rear in the left front fenderwell area.
There are plenty of other places for fuel to leak. If the Y fitting isn't the problem, plan on getting the car outside. Then use a switched jumper in the fuel pump relay socket to pressurize the system as you sniff and feel every connection. The fragrant accumulation while stored points to the Y fitting, but it doesn't have to be the only leak.
If the car was extra-full of initially-cold fuel while parked, it's possible some has expanded out a vent line at the filler neck. Your nose will guide you.
Plus what Stan suggests ^^^
04-03-2019, 07:13 PM
#4
Instructor
Thread Starter
ok found a puddle of fuel I guess at the fuel pump in the rear cargo area under the plastic cap...lifted that black cap up and gas just sitting in there up to the rim.... now...what is the cause? I am not a mechanic.... car was not running for a week so why is fuel building up in there? I did fill up the car before I left it sitting for the past week... how do I correct the problem?
thank you
thank you
04-03-2019, 07:26 PM
#5
Rennlist Member
Failed fuel sender seal.
04-03-2019, 07:41 PM
#7
Rennlist Member
Yes -
1. Call Roger order the seal.
2. Upon receipt carefully sop up the loose fuel.
3. Remove sender harness connection
4. Loosen return hose clamp and remove the hose.
5. Use a wide bladed screwdriver and rubber mallet to gently unscrew the plastic nut.
6. Slowly pull the sender out. without tipping the button and spilling more gas. If you have a catch can use it under the sender to move to a well ventilated area.
7. Remove hard seal and replace with new one. Use DC111 to coat the seals.
And then do the reverse.
Hope I didn't miss anything.
1. Call Roger order the seal.
2. Upon receipt carefully sop up the loose fuel.
3. Remove sender harness connection
4. Loosen return hose clamp and remove the hose.
5. Use a wide bladed screwdriver and rubber mallet to gently unscrew the plastic nut.
6. Slowly pull the sender out. without tipping the button and spilling more gas. If you have a catch can use it under the sender to move to a well ventilated area.
7. Remove hard seal and replace with new one. Use DC111 to coat the seals.
And then do the reverse.
Hope I didn't miss anything.
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04-03-2019, 08:16 PM
#9
Mop the fuel up with a rag and see if more still weeps out. You might want to drive it to get the fuel level well down below the sender seal. The leak will stop after using a gallon or two. Getting the tank Down to 1/2 will make the job a little easier.
04-03-2019, 08:38 PM
#12
Rennlist Member
04-03-2019, 10:16 PM
#13
Rennlist Member
2a.
2a. as a precaution, remove negative terminal from battery after thoroughly ventilating the battery area.I never touch anything electrical in the car if the battery is connected.
Yes -
1. Call Roger order the seal.
2. Upon receipt carefully sop up the loose fuel.
3. Remove sender harness connection
4. Loosen return hose clamp and remove the hose.
5. Use a wide bladed screwdriver and rubber mallet to gently unscrew the plastic nut.
6. Slowly pull the sender out. without tipping the button and spilling more gas. If you have a catch can use it under the sender to move to a well ventilated area.
7. Remove hard seal and replace with new one. Use DC111 to coat the seals.
And then do the reverse.
Hope I didn't miss anything.
1. Call Roger order the seal.
2. Upon receipt carefully sop up the loose fuel.
3. Remove sender harness connection
4. Loosen return hose clamp and remove the hose.
5. Use a wide bladed screwdriver and rubber mallet to gently unscrew the plastic nut.
6. Slowly pull the sender out. without tipping the button and spilling more gas. If you have a catch can use it under the sender to move to a well ventilated area.
7. Remove hard seal and replace with new one. Use DC111 to coat the seals.
And then do the reverse.
Hope I didn't miss anything.
04-03-2019, 10:29 PM
#14
Rennlist Member
I use two big screwdrivers crossed to undo the black cap, and to tighten it again. Helps to fit the cap back if you soften it in hot water. If your fuel gauge is not reading reliably this is the time to clean it internally- see here
https://members.rennlist.com/sharksk...ugeGremlin.htm
The fine wires get crud from drying fuel on them and dont contact properly. Clean CAREFULLY ! Resistance with float at bottom is around 80 ohm.
Some people find the plastic cap on the end of the gauge sender gets snagged on the plastic weir inside - report back if this occurs, keep wriggling.
jp 83 Euro S AT 57k
https://members.rennlist.com/sharksk...ugeGremlin.htm
The fine wires get crud from drying fuel on them and dont contact properly. Clean CAREFULLY ! Resistance with float at bottom is around 80 ohm.
Some people find the plastic cap on the end of the gauge sender gets snagged on the plastic weir inside - report back if this occurs, keep wriggling.
jp 83 Euro S AT 57k
04-04-2019, 12:01 AM
#15
Rennlist Member
The most common issues are the cracked Y connector and the fuel sender. Both are pretty easy to replace.
Re: the screwdrivers on the fuel sender cap: You can also use a pair of oil filter pliers. It's dead easy to replace that thing but if you need a tutorial (I did), search the forums for "Dwayne fuel sender". It is probably a good idea to disconnect the battery as Rob suggests to prevent bad outcomes from sparks. You will know if that's the problem when you pull the carpet up and remove the fabric cover. If there's no gas smell that's not it. You saw gas, so odds are pretty good that was it.
The Y connector mostly needs the disintegrated parts pried out of the hoses under the right side wheel well liner, then the new one will just slide in. Use some zip ties on the hoses to take the strain off the connector. That solved my gas-smell-in-the-cabin problem.
However, the same thing happened to me after opening up the garage last month, and every single problem fuel component has been replaced. I didn't smell anything in the engine bay, the cabin, or under the car. So I chalked it up to a crappy spare gas can for the snow blower and stopped worrying about it. Good luck!
Re: the screwdrivers on the fuel sender cap: You can also use a pair of oil filter pliers. It's dead easy to replace that thing but if you need a tutorial (I did), search the forums for "Dwayne fuel sender". It is probably a good idea to disconnect the battery as Rob suggests to prevent bad outcomes from sparks. You will know if that's the problem when you pull the carpet up and remove the fabric cover. If there's no gas smell that's not it. You saw gas, so odds are pretty good that was it.
The Y connector mostly needs the disintegrated parts pried out of the hoses under the right side wheel well liner, then the new one will just slide in. Use some zip ties on the hoses to take the strain off the connector. That solved my gas-smell-in-the-cabin problem.
However, the same thing happened to me after opening up the garage last month, and every single problem fuel component has been replaced. I didn't smell anything in the engine bay, the cabin, or under the car. So I chalked it up to a crappy spare gas can for the snow blower and stopped worrying about it. Good luck!
