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A couple of weeks ago I started to hear a clicking sound on the highway. I immediately thought it was an exhaust leak and took it to my exhaust buddy. Unfortunately you can't hear the "clicking" sound at idle so he used a stethoscope. After his review he said that there was no exhaust leak, but he did hear a clicking sound closer to the lifters. I told him all Fords make that sound.
After that I made it a point to better understand the situation. First off it only makes the clicking sound under load (gas pedal depressed). The "clicking" is really close together and accelerates as the truck accelerates.
The RPM doesn't matter, its only when the gas pedal is depressed.
The sound definitely is coming from the front passenger side (i thought the exhaust leak was going to be right after the manifold, not so much...)
Oil is changed every 5k with Mobile 1 syn 10w-30 and shes topped off.
The sound seems to get worse when shes warm, which is interesting...
Other forums I've read suggest:
1. C/V joint (mine doesn't click when I'm turning in a parking lot)
2. Exhaust (nope)
3. Torque converter...maybe, someone explain???
4. Loss of vacuum
Again, I can only hear it with the radio down and pressing on the accelerator (more prevalent when warm). I'll be doing 35mph coasting and not hear a thing, but as soon as I give her some gas, click, click, click...like an exhaust leak near the header.
thats weird, we dont have the same year and you have the exact same problem as me, real fast clicking or ticking when pressing the gas, does yours do it when you rev in park or neutral? i tried that and it will only tick/click when i rev and its in gear. let me know if you find the solution, im stumped
The tranny is in 3rd or 4th and you press down the accelerator and the tranny doesn't down shift its the loudest.
yep when your cruzin good and you just mash it, it dont downshift and the rpms are low so you cant really hear the exhaust, all i can hear is the fast tickticktickticktick, i dont see and power loss just the annoying noise
Take away the sound of the exhaust and you hear it well (under load).
Hence, no exhaust leak (Edited...i was wrong this is an exhaust leak at the manifold. If you press on the gas pedal and the tranny doesn't shift its still sucking more air in the throttle body and pushing it out the exhaust ports. Loss of vacuum of course.)