Bronco seems wierd could it be cold weather??

[treihesse]

Its seems like my Np435 is making wierd noises and the motor is running like crap. Does anyone else have this issue in the cold weather?? The Np is making a little noise when Im out of gear and idling.

Stock 302 holley 8150 carb, Np435 w/D20.

 

[Fitz24]

Do the sounds go away and the motor run better when it reaches operating temperature?

When I lived in CO my 76 took some time to warm up before it would run normal. Although I had a C4, I had heard some folks who had problems with the gear oil being to thick in cold weather until everything warmed up, if it warmed up enough. There are a lot of members on here with 435's so I am sure one of them will have an idea of what is happening and what to do.

Good luck.

 

[bluebronco69]

winter grade gas? maybe look into a new fuel filter and maybe think about fluid changes,

 

[SHX669]

How cold are we talking ? I had a NP435 in a pickup that started howling at any temperature below + 5 . It would stop when the tranny warmed up .
As far as your engine running like crap ; again ; how cold?
I see you have a holley carb . I don't know what model / size the 8150 is .
Do you have any of the " heat pickup tube " or assembly or anything to draw warm air to the carb still installed? Or are you like most of us and have that stuff removed and just running a paper / low restriction air cleaner . What temperature thermostat do you have ?
What i'm getting at is when we do everything we can to get cooler summer operating temperatures . And we also remove warm air tubes to get more cold air into the carb -- they don't run very well when it's cold - at least mine don't.
SHX

 

[ugly74]

ya meant mdl 1850, didn't ya? 600cfm vac secondary 4v?
pop the hood before ya start it, and see where the choke is at. that carb, on that engine doesn't need a whole helluva lot of choke, even when it's cold. I have mine so it's just ever so slightly tilted towards closed (like 2*)
hit the gas one time, and it fires right up. I do need to sit there for a minute to babysit it if it's real cold but...meh

 

[jer]

I started my bronc yesterday and it ran like crap I almost thought it was froze up cold weather and fords dont get allong very well in my openion.My 3 speed allways makes those noises though time for a auto

 

[Explorer]

Its seems like my Np435 is making wierd noises and the motor is running like crap. Does anyone else have this issue in the cold weather?? The Np is making a little noise when Im out of gear and idling.

Stock 302 holley 8150 carb, Np435 w/D20.

I know you have been having some problems. This might be worthwhile checking out. http://www.users.bigpond.com/ergoff/vac1.htm