Help!

f100matt · Post by **f100matt** » July 23, 2011, 12:14 am

I drove my truck into town this evening and it seemed to be running great. Parked it for 30-45 minutes, then got into it to drive home and when I started it back up it was running very rough. It would still idle, but again very rough, and when I rev the engine I sounds almost like it is sucking a lot of air. I ended up taking the top of the carburetor, and found the fuel bowl flooded. Not knowing if that was the cause of the not running right or a symptom, I bailed it out and removed the needle to make sure it was clean and not getting hung up. Again I attempted to start the truck, again it was very rough and when I looked in the carb again it appeared to be flooded. It doesn't seem to die at idle.

I am going to get a carb rebuild kit first thing in the morning and see if that helps but I need suggestions and advice of anything else it might be causing this trouble. Right know the truck is still sitting in a parking lot in town and I need to get it home tomorrow, under its own power or on a trailer.

Thanks

jkimbrel65 · Post by **jkimbrel65** » July 23, 2011, 6:52 am

If its a holley carb you have a blown power valve.

Mike

banjopicker66 · Post by **banjopicker66** » July 23, 2011, 8:24 am

Make sure the float is floating high enough. If it has developed a leak (brass) or soaked up fuel (polymer) it won't sit high enough in the fuel even when adjusted correctly when dry.

cooter · Post by **cooter** » July 23, 2011, 8:31 am

what do you mean that you found the float bowl flooded? What was flooded?

banjopicker66 · Post by **banjopicker66** » July 23, 2011, 9:03 am

I just re-read your post, and realized you heard a sound like sucking air.
If the PCV hose is off, loose, split or otherwise leaking real bad, it can make the engine run poorly, and will create a whistling or sucking sound.
I suggest you check your vacuum lines, but since they wouldn't cause a flooding condition, you might have two issues going on at the same time here.
Best of luck getting it fixed!

BarnieTrk · Post by **BarnieTrk** » July 23, 2011, 9:20 am

I HATE IT WHEN THAT HAPPENS!! BUMMER... Maybe your float has developed a leak?

Do you have access to another carb you could put on there to get it home - even if you have to take it off another vehicle, it would likely be easier than rounding up a trailer or hook truck... Keep us posted on your progress!
BarnieTrk

f100matt · Post by **f100matt** » July 25, 2011, 10:36 pm

Thanks for all the replies and sorry for not getting back sooner. All is well, the main problem turned out to be some corroded points, and some junk in the carburetor from sitting for almost six months. I did not even think to check out the distributor when I was trying to figure out what was going on the night i broke down because I figured it had a spark. Lesson learned. I had the same flooding problem once before when I first got the truck running after I bought it, and all I did was clean the carb out well, and I no longer had the problem.