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Messages - G-MAN
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Misc Tech / Fuel tank builds pressure
Quote from: softtouch;466294
Have you tried taking the tank vent line off the canister and letting it vent to atmosphere to see that stops the pressure build up?
Have you tried blowing through the tank vent nipple on the canister to see if the canister is clogged up?
If you have one of those vapor valve/ roll over valve assemblies on the tank, maybe pressure in the tank is somehow causing that valve to close. when you take the gas cap off to release the pressure it opens.
This is my best guesstimate. I'll do some troubleshooting when I get the car out of storage, in about a month.
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Misc Tech / Fuel tank builds pressure
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Misc Tech / Fuel tank builds pressure
Quote from: softtouch;466243
Sounds like you have a vacuum in the tank not pressure. Do you have the stock gas cap?
How do you tell vapor is flowing? Smell it?
I appreciate all of the responses.
Like I stated above, you don't purge active for vapor to flow. It should vent through the canister under it's own pressure.
The 84 EVTM doesn't show an purge solenoid for any of the three engines.
Does your car match the pic above?
The gas cap is not stock but has been on for years, long before this problem started. Slowly unscrew the gas cap and there's enough pressure I can feel it moving through my fingers, out from the cap. On the line from the tank to the canister, I put my vacuum pump on the line and pump half a dozen times. No fuel smell, release the pressure by unscrewing the gas cap, pump a few more times and I can smell gas coming from the vacuum pump. My car matches the diagram, it is stock with no cold air intake or other mods.
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Misc Tech / Fuel tank builds pressure
Quote from: softtouch;466239
If you remove the gas tank vent hose from the canister and this releases the pressure, this means the canister is plugged up.
I've removed the line from the canister, no vapor comes through it when the fuel tank has pressure in it. Unscrew the gas cap and vapor flows through the line.
I appreciate all of the responses.
In regards to a purge solenoid, NAPA doesn't list one for an 83, but they do for an 84. With that being said, I have yet to locate this solenoid on my 83 and I don't recall one being on my 84.(wouldn't be the first time NAPAs has told me wrong. :): )
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Electrical Tech / Electrical issues
Quote from: wpblackfoxturbo;465963
I never had any electrical burning smell in car. I did get a reman ECU this year and has to send back because my car wouldn't run at all. The IRCM is mounted on fender well or strut tower. As far as I know the car was all stock, but obviously the guy I bought the car from had alot of issues with it. I don't know if something got hot in the wiring and burnt the fuse panel or if the guy had something wired into it and overloaded it. Ive often wondered about the wiring. I'm constantly going through inginiton modules, my fog lights will cut off and my headlights will turn off if I drive it for 5_10 miles..as long as I don't run the fog lights the lights are fine. My gauge cluster acts funny from time to time. I did do a dash swap in int a couple of years ago and I never noticed any burnt wires when I swapped the dash.
Check the wiring going to your dimmer switch. My '84 had issues there and did what your lights are doing. The insulation was breaking down allowing wires to touch and short out.
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Drivetrain Tech / Rear Wheel Wobble
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Misc Tech / Fuel tank builds pressure
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