I have an 07 F150 with the 4.6L engine and i was wondering if theres any need to clean my injectors at 30,000km the truck seems to vibrate at idle but not very noticeable seems like a regular v8 rumble but two ppl have pointed it out recently and have riden in my truck a bunch, should i be puttin some injector cleaner in my fuel?
View 3 RepliesI 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)???
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.
I ran out of CNG - truck won't start on reg fuel. Fuse good, relay clicking and I believe I have voltage going to plug connector going to tank. However, I do not have any wiring diagram to know what I'm looking for. The plug is four wire - yellow- 11 volts, red / black stripe 7 volts, black / red stripe and black wire no volts. What checks can I make before dropping the fuel tank and pulling fuel pump? 2003 F150 7700 Bi-fuel ....
View 6 RepliesI have a 2005 Infiniti G35x. I just replaced the stock rotors with EBC slotted rotors and "green stuff" pads. The brakes work great - much better than my old worn out stock brakes. The problem I'm having is when breaking at a slow rate (say slowing from 20 to 0 at a stop sign) I feel a pulsation/vibration (it's not a sound, I can't hear it, just a feeling) in the front rotors. It's not a warpped rotor feeling, and it doesn't happen at higher speeds. The best I could describe it is the feeling you get when you ABS kick in - only much more subtle. So my question is - is this normal? One mechanic said I was feeling the slots as they went around.
View 19 RepliesI've got a 01 f150 yesterday stopped running (like it ran out of gas). Has half a tank. Fuel pressure at rails good but truck will not turn over. Fuel pump and filter less than year old.
View 1 Replies1992 Chevy Cavalier, about 120,000 miles. A few months ago my car has started to rumble and vibrate while idling in drive. It only occurs while I'm in drive and completely stopped. If I change to neutral or park, it immediately goes away. Also, if I'm in drive, keep my foot on the brake and give it a little gas, the vibration goes away. I've changed the spark plugs, had the throttle body cleaned (not very thoroughly) and my mechanic said my engine mounts look fine and to not worry too much about it. Is this a problem I can ignore as an inconvenience or should I put more effort into getting this fixed?
View 2 RepliesI recently had my local VW dealership replace the alternator on my 2004 V8 under warranty. Upon picking up the Touareg, there is a noticeable increase in exhaust rumble inside the vehicle as well as a vibration coming from the front passenger's seat and footwell. It isn't any louder outside but my wife and son both agree that it is much louder inside the Touareg.
I brought this up to the service representative and he had the shop foreman take a look. The technician said he didn't find any exhaust leaks and said they dropped the motor without removing any exhaust components. He claimed they just removed the clips on the pipes and dropped the motor and exhaust together. I was left to drive away with no solution.
i have a 78' F-250 4x4 4 speed with a straight 6. it has headers and an eldebrock 600 on an offenhouser dual plane intake. The carb just randomly started acting up the other day and what to try now. it will sputter and just about die when i first let off the clutch then it will suddenly start racin. its really annoying and hard to drive. i checked the inline fuel filter and it should be getting plenty of gas. didn't find any vacuum leaks.
View 14 RepliesMy truck is a 1990 Ford F150. It seems like when I let it sit for a few min that the gas just drains back into the tank and there for it wont start up that fast, it takes a while to get it going but when I shut it off and start it back up its like a new truck. It starts right up!!! Any tips on what might be wrong, maybe the gas cap is letting pressure out? Im 17 and my dad knows alot about trucks but he cant tell whats wrong.
View 1 RepliesMy truck starts and runs fine cold. after 10 minutes or so of driving, it starts choking and stalls. If you try to start it, it will not. If you wait about 3 minutes, it is fine, starts , and drives ok, for about 3 minutes. I have replaced, plugs, fuel filter, battery, and a ignition module, as well as cleaned the opening of the throttle body
Ford has ordered a fuel pump, I am thinking it could be the
-Throttle position Sensor?
-MAF sensor?
-fuel pump?
It puts out code p0191 for low fuel pressure. Ford is scheduled to install new pump in am, but I don't want to spend a grand if it is just the TPS or MAf?
Well I have a 2150 carb on my '82 truck, I looked in my parts and illustration guide and found what should be a fairly close overhaul kit for my truck based off it being a non high altitude truck and it has A/C and its a 302 with C6 transmission 2 wheel drive.
Down side is the power valve that came with my kit is a two stage power valve and I currently have a single stage power valve.
If I were to use this two stage power valve where would I buy a replacement two stage power valve cover?
Ive been looking but cant find any anywhere and I am to the point of figuring out what power valve my truck has currently so I don't have to put my only vehicle down for multiple days for a simple carb rebuild.
I have a 92 f150 w 302 . My front tank leaks out of the gas cap and builds up pressure. Even though I have never put fuel in it (owned it 7 mos). I siphon fuel out of it weekly. If I switch from rear to front. The truck stalls out.
View 1 Replies2004 F150 Supercrew
44400 miles
So I turned on my truck today and the needles acted as if they were possesed. The went under the "starting points" and vibrated there for about 5 seconds or so... Very strange. I also have been getting sluggish power from the truck. Mainly between 2000 and 3000 rpms.. Sound like a diesel at times.
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?
View 4 RepliesI 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.
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?
View 5 RepliesI 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?
View 1 RepliesI recently bought a 2008 F-250 lariat and it came with the single disk am/fm radio, i am wondering, can put the navigation touch screen radio in its place?
View 2 RepliesIts 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.
View 6 RepliesI have an ambient temp switch connected to the vac port on my throttle emissions control solenoid for my 2150 carburetor. It's a 78 F-150 with a 5.0L 302, automatic 2WD. Would a bad ambient temp switch screw up my idle? I've disconnected the vac hose and it won't idle at all, and it does the same thing when I disconnect the two wires from the ambient temp switch. If I leave everything alone, I can get the idle down to around 1800rpm, but any lower than that and it stalls.
Is it possible to swap out this throttle emissions control solenoid with another type? I've looked everywhere and can't find an exact replacement, and I have no instructions on how to tune it.