My pickup runs fine until the engine warms up to operating temp. Then it starts to backfire and eventually shuts down. Any help to fix this problem would be greatly appreciated
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Hey welcome to the VFF!
We need to determine if your issue is spark or fuel. Read through this information very carefully and report back. It could be as easy as a fuel cap not venting or a bad condenser. Knowing what system to attack is important. Of course make sure your basic settings, points etc are to specs.
https://www.vintagefordforum.com/for...-and-misc-tips3~ Tudor's & 1~ Coupe
Henry Ford said,
"It's all nuts and bolts"
"Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible."
Mitch's Auto Service ctr -
Hey Blaineu99, WELCOME to the VFF!!
I just recently had this happen to me and found that my intake manifold was leaking after it got hot leaning out the fuel. Not saying this is your problem, but an easy thing to check by just getting the engine warmed up and squirting something flammable around the gasket areas, will make the engine run differently.You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command!Comment
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Need help with the following issue : My pickup starts fine and will run for 25 minutes or so and then kill . I believe it is an electrical issue because the ballast resistor that I installed between the coil gets very hot and I am guessing that it is causing a drop in coil voltage . If the truck sits for 30 - 45 minutes , it starts no problem . I changed the system to 12V neg ground and added an alternator...08-14-2019, 08:52 AM -
I have a 1931 roadster which, for the most part, starts and runs great. However, after a bit of driving when it has warmed up, it begins to "chuff" (fire, fart, huff - not sure of the correct technical term) each time I shift. It isn't horrible or loud (not a backfire), but it seems like something that is likely slightly out of adjustment or that I'm not doing right with the choke or something....10-11-2017, 10:00 AM
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1939 Ford Deluxe Coupe, 85 hp. V8. Holley 94 rebuilt carburetor, 59000 miles showing, but odometer is not working. Non ethanol gas is used.
Heads were removed for inspection. Engine appears to have never been overhauled based on inspection of pistons and valves. Pistons and valves heavy with dry carbon. Nothing wet around piston/valves. All pistons stamped STD and do not wiggle, do...09-13-2017, 04:52 PM -
Our 29 Tudor runs well but if caught in traffic or after a long fast run begins bucking, sometimes to the point of nearly quitting. I do not have engine pans - on order. Pouring water on the carb and fuel line break the lock. Am now trying a Zenith-1 in place of the Tillotson but don't really expect much change. Engine temp is about 170-190 deg. by gauge and about the same with a gun. Fuel is regular....06-08-2019, 02:14 PM
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I have a newly rebult engine on my '29A. After about 10 minutes of operation, the engine overheats, loses power and backfires. Coolant blows through the overflow.This happens at a fast idle as well as at operating speed. It's been suggested I open the choke wider to prevent fuel starvation, but when I do, the engine begins to run rough and backfires.
Appreciate any ideas as to what I could do...09-26-2020, 09:58 AM -
I have gone thru everything to try and remedy this issue. I feel like it’s a super simple fix but I just can’t find the problem. On the plus side, I have found and fixed a whole lot of other minor issues. I have not driven my A in months and it’s super frustrating....02-01-2020, 10:12 PM -
If a Model A engine is running hot in 94 degree outdoor temp can a CONDENSOR go bad and cause backfire, cutting out, skipping, and no power etc AND THEN when the engine cools down become a well functioning CODENSOR again? I am looking for an answer from an expert that knows, not just an opinion. Thanks for your help!!
Wayne T.08-22-2018, 10:35 AM -
my project 47 ford pickup starts fine and I’ll drive it into town and shut it off and it won’t start unless I wait 10 minutes as it cools off and then it starts and when I get home it does it again. What could my problem be?06-05-2019, 08:12 PM
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I have a "friend" of mine that is having a problem that has me, I mean him, puzzled. The car idles great. There is a response from the timing lever. Starts off smooth as silk. In third gear, at about 40-45 the car hesitates then resumes, hesitates resumes. The engine RPM's go down like you took your foot off the gas but it sometimes backfires out of the exhaust, so not clutch related. This...10-20-2018, 01:03 PM -
Hello, I am completely new to the Model A scene. I have restored a fair number of more modern cars but I know nothing about the Model A. A friend of mines father passed away recently and he is selling his Model A pickup. He drove it a couple of times a week. It starts, stops, and drives. It seems complete, and is rust free. He said the motor was recently rebuilt. The body is solid, bed wood is shot,...10-30-2020, 07:01 PM
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