Ford Fuel System :: Holley 4150 Choke - High Idle After Restarting?
Oct 4, 2016
I bought a new Holley 600 CFM 4150 with electric choke for my 79 ford F 250 with 400 engine. If I start the truck cold the choke works as it should and after driving 10 or so minutes it runs fine off choke. When I restart the truck after stopping for gas or food it goes back on high idle even with the engine temp at 180 degrees. Should it go on high idle even on a hot day fully warmed up every time i start it? I don't remember my last 600 doing it.
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i just got my edelbrock performer rpm intake and my holley 4 barrel installed but it won't run...the only way i can get it to hit and run at all is to floor it like it's flooded...then it'll run for a second but will never rev up and get going like it should...so i watched some vids on youtube for setting mixture on holley's wich i was pretty sure about anyway...turned the idle mixture screws in to snug and then out 1 and a half turns. is this a symptom of a bad vacuum leak or is it something to do with the carb maybe not enough fuel?
it's a holley 4160...list-6619...which is 600 cfm...it's on a 302 with 3 speed.
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The choke is never setting. Something in my throttle linkage is wrong or sticky and it doesn't flip up the lever that engages the choke?
Hard to explain. Hopefully, the video makes it clear?
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The gasket blew out on the choke (tube) plate on my 460. The one that sits on the engine with the tubes running up to the choke.
Do I need to apply a gasket sealer when I replace it or does it just go on dry? I've read some conflicting opinions on it. A tad on the corners to hold it in place. Put it on dry or put sealer on it.
I know when I remove it I will be able to tell but since I don't have any hi temp sealant. I'd rather buy some when I get the gasket than go back.
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I have a newly remanufactured Holley 1835 carb which has had an electric choke added to it. My '59 F-100 has the original electrical system in place. Where would you recommend running the positive and negative wires from the choke? No instructions came with the carb.
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So I picked up a 2 barrel carburetor of a 1972 Ford Truck, most likely an F250. Has a tag and everything, this is a Motorcraft 2100-D (D2TF JB). No electric choke or anything like that. So I'm wondering if I can run the carb with choke permanently open? Also is there an electric choke conversion that I can buy, if so where is it? I can't seem to find one. Also what are the adjustments? I seem to have 2 needle valves to adjust and one other.
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I picked up a renamed 2100 for my '72 and I found out choke vacuum control on the back of the carb is frozen. Are these parts still produced and if not is there another way to make it work?
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I picked up a remaned 2100 for my '72 and I found out choke vacuum control on the back of the carb is frozen. I can't find anyone who carries it, let alone knows what it is. Are these parts still produced and if not is there another way to make it work?
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I am having problems with my automatic choke. Holley 80457. When I turn on the ignition and depress the accelerator, the choke plate does not close. It is wired and has vacuum.
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I have an issue with extreme high initial idle at start up. I took my 1998 Ranger with a 3.0L to the local dealer to have some work done about a month ago. Long story short, my number six plug wire got burned against the exhaust rail.
Anyway, I guess they re-flashed the computer to the newest *.bin, or flash version. After that when I start the truck the tachometer jumps up to 2200 - 2300 RPM and then it settles down to about 1500 after a moment or two, then it finally adjusts itself to about 1100 for a few more seconds and eventually ends up at 900 - 1000 RPM.
I confronted Ford about this and they said that Ranger's and F-150's do have a tendency to do that at start up. Ordinarily I wouldn't be too concerned, however I believe that the 2200 - 2300 RPM high idle at start up at 0 F, a bit much.
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I've been having pretty serious issue with my truck lately, and it involves the idle being way to high. The strange thing is, it only idles high after I give it gas. But, the idle (after I lift off the petal completely) is almost as high as the engine speed while I was giving it gas. The carb is a motorcraft 2100 (I just re-built it) with climatic choke.
I've adjusted the choke to no end, and it seemed to have an effect on it at first, but now the problem has just gotten worse. I'm thinking its something in the throttle linkage. Also, when I put my foot under the gas petal and lift up, the idle instantly slows back down. I'm thinking I'm missing a return spring somewhere in the linkage, so heres some photos I took:
I can't drive it like this, and the problem is getting frustrating. It ran fine before I re-built the carb too, except, that it leaked gs all over the place.
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So my story starts simple enough; I ran out of gas in my buddy's car, filled it back up, it finally started but ran like >poop< for the first 10 min or so. Finally after coaxing for 10-15 min, she stays coming around. After 30 min or so of driving, I could drive her all I wanted, so long as I didn't let it idle below 12-1500 rpm. If I did that, she'd kill, and stall out. Well I drove her the other day for most the day and it seemed the kinks were worked out. So today when I tried to drive her round the block for a final check, she up and dies, and hasn't started since. I've replaced the fuel filter, checked the intake, and dropped a can of sea foam in to the tank to boot, but no dice.Signs and symptoms seem to mimic a bad mass air flow sensor or possibly a clogged catalytic converter, with the exception that it only shudders and acts congested on low rpm's and doesn't choke out at high revs.
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My truck is a 1995 Explorer 4.0 150,000 miles, 5 speed.
Problem - Rough idle : when cold it's worse and will stall and choke a little. When warmed up it just has a rough idle but will not stall and stays at a pretty constant RPM. It's very tolerable when warmed up but still not right. It drives fine once off idle. No black smoke that I can see. Power may be just a little off but I would not bet on it. MPG seems about normal but haven't been on a long enough trip since problem started to tell for sure. Also longer than normal cranking on occasion.
Diagnostics so far : Fuel pressure is at 32 PSI, vacuum off regulator it's at 40 PSI. Not sure about key on only as I don't trust the autozone loaner gauges. You have to fiddle with it each time before it will read. Leak down after 30 minutes was about 4 PSI
No Check engine light ever. KOEO test shows no hard or on demand codes, I get the 111 pass. From CM I get 336 and 45.
336 is EGR related and my looks pretty rusty. I put a vacuum pump on it while running and the EGR held vacuum but had no effect at all on idle, I was expecting it to get worse as I opened the EGR so it may be stuck.
Searched high and low for vacuum leaks by ear, visual and with starting fluid all turned up nothing.
Actions so far : Replaced plugs, wires, IAC, and fuel filter. Cleaned MAF sensor and throttle body plus ran lucas fuel injector cleaner through it.
Next steps : I've got the EGR but it's so rusty I am sure I'll break the tube it bolts to plus I don't know it that alone will cause the rough idle. Will the DPFE sensor and/or EVR create a rough idle yet not turn on the CEL?
Thought about changing the fuel pump and/or regulator but the numbers are not terrible. Agree?
Thought about changing the intake gaskets but don't see any leaks.
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1991 F150XLT, 5.0, E4OD....Should the EFI system bump up the idle speed when the AC system is operating to compensate for the compressor load? Obviously I'm asking because mine sure doesn't. With AC on, the idle speed will drop to around 300rpm in Drive, like when sitting at a red light for example. Surely this isn't normal operation...is it?
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I just bought a 1991 F150 with a 302 (5.0). It idles at around 2600-2800 RPMs. The previous owners replaced the TPS and IAC, but it still idles fast. Ford dealership told them it was a vacuum leak. Are all the vacuum lines close to each other? How easy is it to locate/fix the problem?
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I have a 4160 on a 351 Ford. I confess, it's a boat!
I had a major flat spot when accelerating off idle. I found it wasn't pumping on the accelerator circuit.
I replaced the accelerator diaphragm and cleaned the squirts and the passages. It squirts great now, but if I floor it, it completely bogs. If I baby it really carefully, once the engine gets over about 1800 rpms, it acts fine.
I thought it over, checked the travel on the arm that presses the diaphragm, and figured my pump cam was worn. It "seemed" like the duration of the squirt was not long enough.
I got a new cam kit. The orange cam on my carb was not a bit worn compared to the cam in the kit. Not encouraging. I put the only other cam in the kit that I thought might work. It was blue, and it gave more lift but no greater duration. It did not make any difference that I can tell. Is there a transition circuit I might have problem with? I don't know enough to go any further.
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I rebuilt a 1963 ford 2B crburetor with manual choke. Put the carburetor on and it runs very rough. Won't go below 800 rpm or it dies and I need to choke it to start. Thought it was a vacumn leak so sprayed WD -40 and no change in idle. So pulled off the carburetor and put on the previous carburetor (with electric choke) and it runs great. I want to use the manual choke to hook up the cable though. I replaced everything in the carb. What do you think it is?
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I picked up a 90 f150 with the 302. it wont idle without a little throttle, so after a quick look under the hood i noticed alot of broken torn and missing vacuum lines. Where I can get some sort of diagram for routing?
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I have a 1984 Ford F-150 with an I6 engine and a motorcraft carburetor. The truck absolutely will not idle. So I got to looking at the carburetor, and found this red hose going from the carb to a metal pipe, the pipe was just dangling there not connected to anything, and the end it rusted off. I'm pretty sure I know where the other end is supposed to go to, I just don't know how to get there as obviously I am missing some parts and I can't find them so they must have been lost on the road somewhere.
Here's how it looks:
The end of the pipe:
Where it is supposed to end (I think)???
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Its an 88 F-250 4x4 with a 302 EFI 5-speed. Fair compression, runs smooth. When I press the gas pedal it takes about 5 seconds for the old girl to return to idle. I know nothing about EFI. My buddy,s out of town with the hand held mechanic. Is there anything I could check till he gets back.
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Engine is a late 60's 390 with a C6 auto in good shape with a purported rebuild of about 10-15K miles on it. I picked up a nice condition Autolite 4100 and rebuilt it. Original tag states "C5AF AV" and below that in smaller font: "A 5AC" The base is stamped 1.12. It has the auto choke and auto tranny kickdown.
Truck has been sitting for 4 years so I drained the gas, primed the oil and added 5 fresh gallons. Started up on the second try!! But it won't idle and wants to die unless I feather the gas until it warms up. Also has a bog when accelerating up past 1200 RPM. I've been checking for vacuum leaks but none so far found.
I have a number of questions. But one of the areas I believe I need to correctly adjust is the float level, and here is where I can't get a clear answer or clear explanation of the correct procedures. What is the correct float level? My Sorensen rebuild kit actually had multiple values and the one that looked best had different primary and secondary values. I tried setting it "dry" by the upside down check with the cardboard supplied gauge. Good news is that it is not overflowing so needles and floats seem to be working correctly.
However, how do you do a more accurate wet setting? Appears to be two methods - one is the float setting and the other is the fuel depth. One good thread seems to state that both wet floats should be at 11/16". An engine builder locally said they should both be about level/parallel. Autozone says the primary should be 20/32" and the secondary should be 1 1/16". My rear wet float is almost level and it measures about 15/32". NONE of the data I've been able to find agree on the right setting nor do they explain in detail the correct way to measure using the wet float method.
I've got more questions like the choke settings and the vacuum port for hot air intake (currently open) and only getting 14 inches vacuum (I believe it should be 18 inches) etc., but I'd like to get the floats right before tackling them.
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