4.0L SOHC noise
#1
4.0L SOHC noise
my 2005 ranger, 4.0L 5spd 4x4, started to make a LOT of noise coming from the valves (i think). i still need to diagnose it further. i will be doing a compression test on each cylinder to find my problem....
if i need to pull the engine and replace it would it be worth it since it is out to put on some headers? will i get any performance from them, better sound, fuel mileage?
how much difference would an electric fan make?
how about a mild cam?
any suggestions on ways to fix this problem or ways to get more performance out of a new engine would be awesome! please help a brother when he's down!
if i need to pull the engine and replace it would it be worth it since it is out to put on some headers? will i get any performance from them, better sound, fuel mileage?
how much difference would an electric fan make?
how about a mild cam?
any suggestions on ways to fix this problem or ways to get more performance out of a new engine would be awesome! please help a brother when he's down!
#6
#7
No it's not the chain rattle. I know that for fact. Truck has about 92000k on it. I have talked to some of the mechanics I work with and they told me it's most likely injector knock caused by the dead alternator. Injectors can't open properly because of the low power. I have a 130amp alternator ordered and hopefully by Wednesday I can put it on and try it out
#9
Nope new alternator did not fix it. I did a compression test on cylinders 1,3,6 today... Cyl 1- 158psi, cyl 3- 90 psi, cyl 6- 155psi. My haynes manual says all cylinders should be within 15psi of each other... Minimum of 100psi. So at least now I know I have bad compression. Next step is to find if I have a faulty valve or piston in cylinder 3
#11
#12
I think the engine has been sucking in a lot of dirt. I have noticed recently that everytime I open the hood I have to reposition and relock the air box clips. I am going to start pulling the engine apart this evening to see what I can find.
I had a nice vacation this weekend so I'm ready to get my hands dirty!
I had a nice vacation this weekend so I'm ready to get my hands dirty!
#13
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