Been sitting up for 5 yes crank but want stay running

Asked by Jan 12, 2014 at 10:09 AM about the 1979 Ford F-100

Question type: Maintenance & Repair

1 Answer

110,005

Best thing to do when one has been sitting so long is to drain all old gas out of tank. Add new gas with can of sea foam. Un hook fuel line at engine and turn engine over till you smell good fresh gas coming out. Reconnect fuel line. Change fuel filter. Remove all spark plugs clean them or replace as needed. Remove dist cap and rotor clean or replace as needed. Inspect spark plug wires. Replace as needed. With spark plugs removed turn engine over. This should blow old gas and moisture out of cylinder. Change oil and filter. Doing these things normally will bring one back to life for me if there is nothing else major wrong with it. Once you get it to where it will idle add sea foam to oil as directed on the can. Allow it to idle with sea foam in oil for about thirty or so minutes. (Only idle do not rev it up). Then replace oil and filter again. Hope this helps some.

Your Answer

Add photo

Related Questions

  • F100 300cid. Engine runs great until I put in drive. 10 answers

    I have replaced OEM EGR valve, replaced fuel pump, replaced spark plugs, air filter. Stopped 3 vacuum leaks all 3 in or around carb with rubber hose/tight screw in end method. I crank truck...runs fi...

    1982 Ford F-100

    -

    Maintenance & Repair

  • F150 Ford truck 8 answers

    this has just started i drive my truck it runs great i stop go in a store come back out and it will not run will turn over but will not stay running what do you think is wrong with it?

    Ford F-100

    -

    Maintenance & Repair

  • Truck won't start has spark and cranks. 11 answers

    My 1980 ford 100 truck will not start. I have replaced wires, plugs, distributor, cap, rotor button, ignition coil, ignition module, battery, starter, starter cylinoid, and fuel pump. It will crank ...

    1980 Ford F-100

    -

    Maintenance & Repair

  • truck runs for fifteen minutes then dies and won't start for at least twenty minutes. I think I have pulled my hair and teeth out trying to figure this out!! 31 answers

    73 f100390 c.i; Replaced timing chain,distributor,plugs, new cap, pertronix ignitor, fuel filter, gas tank, Compression is 120 7 cylinders 140 on 1. Checked and adjusted floats and cleaned, carburator...

    1973 Ford F-100

    -

    Maintenance & Repair

  • starts but wont stay running.... 5 answers

    i have a bronco II i try to crank it but it wont stay running....i have replaced the fuel relay, both fuel pumps, and the fuel filter. i am running out of ideas if anyone knows anything please write ...

    Ford Bronco II

    -

    Maintenance & Repair

Search Ford F-100 Questions

Ford F-100 Experts

#1 tennisshoes
tennisshoes
Reputation 440
#2 MrBlueOval
MrBlueOval
Reputation 300
#3 Rowefast
Rowefast
Reputation 280
View All

Related Models For Sale

Used Ford F-150
2,191 Great Deals out of 206,316 listings starting at $1,499
Used Ford Mustang
474 Great Deals out of 45,735 listings starting at $1,999
Used Ford F-250
481 listings starting at $3,475
Used Ford Bronco
196 listings
Used Chevrolet Corvette
119 Great Deals out of 20,753 listings starting at $3,000
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.