bc.gold 3,403 #1 Posted March 27, 2019 (edited) A neighbor gave me her old GMC, truck sat in her yard for several years and she used to start it every so often then the battery went dead and no further attempts were made to periodically start the truck. Told me the truck had a new fuel pump installed just before it was parked, I put a battery into the truck no go, poured a bit of fuel down the intake and it fired right up and would run until the fuel was gone. Fuel gauge says the tank is full, cleaned the filter and checked the fuel relay which checked out ok. Sitting here having a coffee and yapping about this darn truck to my other half when she chimes in, Is there any gas in the truck. Duh, giving it some thought maybe not. Just because the fuel gauge says it's full don't necessarily mean its full. Regardless o what the fuel gauge says tomorrow I'm going to put some fuel in the tank, then perhaps eat a bit of crow if that darn truck decides to run. Edited March 27, 2019 by bcgold 7 Share this post Link to post Share on other sites
Pullstart 62,787 #2 Posted March 27, 2019 How old is it? I’ve got a plow truck that gets topped off every100 miles, it always says full 2 Share this post Link to post Share on other sites
ebinmaine 67,271 #3 Posted March 27, 2019 Yepp..... Been there. Share this post Link to post Share on other sites
squonk 41,023 #4 Posted March 27, 2019 B - I- L bought an old Farmall. Couldn't get it to run. Replaced cap rotor wires points ign. switch then he calls me. Gas tank was full but 90% water! 2 1 Share this post Link to post Share on other sites
Achto 27,502 #5 Posted March 27, 2019 You said that the truck has been sitting for some time. Has the gas that is in the tank gone bad? 4 Share this post Link to post Share on other sites
bc.gold 3,403 #6 Posted March 27, 2019 7 hours ago, pullstart said: How old is it? I’ve got a plow truck that gets topped off every100 miles, it always says full 92 club cab, I had removed the fuel line at the throttle body after cleaning out the filter no gas coming forward. The insurance corporation also insists an anti theft device be installed, after its installed you get a black and a red dongle your supposed to have the black one on your key chain the red is supposed to be securely stored as it has the code needed to replace a lost black dongle. When I had acquired a Dakota just got the red, but it will also allow the vehicle to start and drive. Just made a call to one of the guys who dose't mind me picking his brain, says that the anti theft device shuts off fuel and spark, since the truck will start by adding fuel into the intake I now know that the device is not interfering with any of the requirements needed to start the engine. On the newer vehicle this dongle is shipped into the ignition key so you really don't notice it unless you've lost the key then learn the cost of replacing said key is much higher than having a new one cut at the local hardware from a key blank. I believe Pat is right the tank is empty or its possible a rodent has chewed a few wires, this new plastic they use today is soy based Rodents Are Feasting On Newer Cars' Soy-Based Wiring Insulation Share this post Link to post Share on other sites
Stormin 9,981 #7 Posted March 27, 2019 Try tapping the tank to see what it sounds like. Also as stated already, the fuel could have gone stale. Are the spark plugs wet after trying to start it? Share this post Link to post Share on other sites
bc.gold 3,403 #8 Posted March 27, 2019 Managed to get a small diameter hose down into the fuel tank via the filler neck, the tank has plenty of gas. I already know that the relay is good so my next test I need to identify the power lead at the relay leading to the fuel pump, using Ohm meter test resistance of the pump or for an open circuit. Share this post Link to post Share on other sites
Stepney 2,325 #9 Posted March 27, 2019 That's not so bad.. atleast you weren't in a parade, in an antique fire truck 1 1 Share this post Link to post Share on other sites
ebinmaine 67,271 #10 Posted March 27, 2019 24 minutes ago, Stepney said: That's not so bad.. atleast you weren't in a parade, in an antique fire truck A story there? 1 Share this post Link to post Share on other sites
bc.gold 3,403 #11 Posted March 27, 2019 31 minutes ago, Stepney said: That's not so bad.. atleast you weren't in a parade, in an antique fire truck Don't leave us in suspense we would like to hear the rest of the story. Share this post Link to post Share on other sites
Stepney 2,325 #12 Posted March 27, 2019 (edited) Not much to it, really. Old 113 is a 1935 Ford with the 'hydrostatic' non electric gas gauge. I've been restoring it for our town. The gauge worked by way of pressure as the tank level rose and fell, the gauge looks like an old mercury thermometer. The mercury was up to the top, so away we went. Cut out in the middle of a parade. This is an old truck with the gas tank under the seat. Why I didn't check before leaving is beyond me, because this has happened 3 times now haha. Prom night was another one.. I suppose there is a reason they only used this gauge in 34-35.. some day I'll find a electric '36 setup. Edited March 27, 2019 by Stepney 3 3 2 Share this post Link to post Share on other sites
