There is a gas smell inside my 1986 190E, I cannot find a leak and have not seen anything to indicate a leak but the smell is quite strong. Any suggestions or guesses what the source of the problem could be?
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Re: cannot locate source of gas smell 1986 Merc 190E
Look for wet spots or stains on the motor !
alsodust & grime could be hiding a leak or a fracture in a fuel line or it could be a leaking fuel injector
check fiewall for loos ao brocken rubber grommets that pipes & wires pass through that could be allowing fumes into the cabin
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If the smoke has a sweet smell to it then it is coolant from an internal leak inside the engine like a head gasket or other source. To confirm that you have a leaking head gasket have a shop problem the coolant recovery/surge tank with a gas analyzer for the presence of hydrocarbons in the coolant tank, this indicates for sure that a head gasket is the cause of the white smoke.
the heater core is the only thing you havent replaced besides the thermostat so feel the carpets and floor around the floor heater out puts to see if there damp or sticky they may smell like a sweet smell as well.
Sounds like one of the rubber hoses in the engine bay may be leaking. Could also be a leak somewhere around the carbuerator or fuel injectors.
Turn on the car and look/smell your engine bay. Look for anything that may indicate a leak or try and follow your nose. Leave running for awhle, and if you still can not find it, turn car off, and check all lines again.
When the heater is turned on, it is drawing in air from the cowl at the bottom of the windshield outside the car. If your smelling gas when you turn it on, it would suggest to me that there may be a fuel leak under the hood. A lot of Honda's have the fuel filter under the hood against the firewall. Open the hood, and see if the gas smell is any stronger, or any gas smell at all for that matter. I would strongly recommend getting the car checked as soon as possible, if you can find the source of the smell yourself.
At the primary coil you can connect to 12V and make it turn on and off repeatably to make a spark if a plug plugged in at the secondary coil ( the cable going to the center of the cap distributor). If you have spark then your ignition module is bad. This one to do the work that you just did. There is one more thing, if your crankshaft is not working then even the ignition module is good, it is not making spark either.