@chuzie,
You have an idle problem of unknown origin. Since you don't seem to be the person that installed the camshaft or have the manufacturer's data sheet, you cannot assume that it is anything other than stock. Idle malfunctions can imitate the sound of a wild cam.
What is the mechanical condition of the engine? Good compression? No noisy valves or rattles?
How does the ignition system and electrical wiring look? Old spark plugs old sparkplug wires with burned or damaged boots and wires?
What codes did you get?
Have you fixed all of the codes?
Do you have any vacuum leaks?
What sort of vacuum readings are you getting?
Have you fixed them?
In other words, did you just look at the checklist and pick and choose what you wanted to do?
Start at the first post of the checklist and work your way down, verifying the current step is good BEFORE going to the next step. Make NO assumptions.
YouTube videos do not communicate the "feel" of what is occurring and often are of such poor quality as to be useless. Bad lighting and shaky camera are two of the prime problems that are very common.
The checklist is written because I am not present when you do the work.
Therefore I cannot determine the condition of the engine and engine control computer system. I also have no idea of the level of proficiency you have in the mechanical and electrical areas. So you get a laundry list of things to look at, separating the things that are good from the things that are not good. What is left is a small number of problem symptoms and descriptions that usually point to a definite area or component.
IN other words, just do the checklist. Post the results of you code dumps, engine off and engine running and I will give you 5.0 Mustang specific fixes.
You have an idle problem of unknown origin. Since you don't seem to be the person that installed the camshaft or have the manufacturer's data sheet, you cannot assume that it is anything other than stock. Idle malfunctions can imitate the sound of a wild cam.
What is the mechanical condition of the engine? Good compression? No noisy valves or rattles?
How does the ignition system and electrical wiring look? Old spark plugs old sparkplug wires with burned or damaged boots and wires?
What codes did you get?
Have you fixed all of the codes?
Do you have any vacuum leaks?
What sort of vacuum readings are you getting?
Have you fixed them?
In other words, did you just look at the checklist and pick and choose what you wanted to do?
Start at the first post of the checklist and work your way down, verifying the current step is good BEFORE going to the next step. Make NO assumptions.
YouTube videos do not communicate the "feel" of what is occurring and often are of such poor quality as to be useless. Bad lighting and shaky camera are two of the prime problems that are very common.
The checklist is written because I am not present when you do the work.
Therefore I cannot determine the condition of the engine and engine control computer system. I also have no idea of the level of proficiency you have in the mechanical and electrical areas. So you get a laundry list of things to look at, separating the things that are good from the things that are not good. What is left is a small number of problem symptoms and descriptions that usually point to a definite area or component.
IN other words, just do the checklist. Post the results of you code dumps, engine off and engine running and I will give you 5.0 Mustang specific fixes.
but normal then drive down the road come to a light back to surging. Checked fuel pressure around 38-39 with vac house on. I'm going to check vac reading tomorrow and for codes. Took plug out to set at tdc ground strap was white with a little gray tint. To me seems like the balancer is off marking whise need to verify that tho. I'm at a loss here bout the throw in the towel. Not sure why i cant the idle to stay like it does if shut off and sits for a few. It idle raised closer to 1k it will do okay but that doesn't seem right almost seems like its lean which have a mallory adj regulator I can put on it. Really hoping to get this resolved was thinking maybe a tune would help but after reading dont think it would. Read on another forum that the dashpot for iac needs to be changed when bored out any help or suggestions would be appreciated. Also have not tried mounting iac upside down bought from parts store. Cleaned salt and pepper shakers. Have idle set at 750 but surges can try base idle reset didn't know your suppose to remove spout.
