Fast Ticks at High Speeds

[djsk8r33]

it certainly isnt an engine knock, i have a car that has that.

it seems like only on the highway i hear these really fast ticks coming from the dash-area. i can not pin point where exactly or where its coming from. i wish i could sit in the engine bay at 60+ MPH, LOL.

any known issues like this that im not aware of?

 

[Willard]

Could be the valve's tapping, or the lifters tapping. Most likely the valves if it's only at 60 or above.

 

[djsk8r33]

it is most deffintly 60+, if that

most roads in town are 45, and cruising at a good 55, i cannot hear it.

if it IS the valves.. what does this mean? replacement? not yet? quick fix? leave it be?

 

[Willard]

you could just leave it, it might need a little tune-up, that's all. A lot of these explorers have it. Try cleaning your MAF sensor, it is said to help some. If you don't know what I'm talking about, just search it.

 

[wolfnutts]

ya im thinking weak valve spring or lifter plugged up how many miles on your trk ??

 

[dzjammer]

very well could be the speedometer. mine does the same thing at highway (65+) speeds, but not so much around town.

 

[Masterd]

I'll 2nd the speedometer.

So far mine's sounded like a squealing fan belt and horrible valve clatter.

Dont overlook it.

 

[BP_93explorer]

I get a ticking if I punch the gas hard close to or at highway speeds. Doesn't do it constantly though. I've been hearing it for over a year now. I just keep oil in it and try to stay off the gas pedal.

 

[djsk8r33]

speedometer is possibility, it is accurate, but jumpy at the higher speeds.

ive just done a tuneup including seafoam, but ive yet to do it in the intake yet
my X has high miles but only around 50k on my jasper motor/trans

 

[pugsy]

I'll 3rd spedo. Mine does this only when cold at freeway speeds, jumps a bit, then when it's nice and toasty in the car, it seems to go away and registers the speed okay.

 

[djsk8r33]

by the time you get on the highway your truck should pretty much be warm.. i dont think this ticking has anything to do the with the speedo. the only reason i say so is because its a little jumpy at certain speeds, but even when its not, i can hear tickticktickticktick

 

[Masterd]

When you hear it, try speeding up and see if it goes away or stays.

 

[djsk8r33]

slow down= go away
speed up = no.


recently this hasnt been a problem for some reason

 

[bobthekatt7]

If it were the speedo, you might want to check into replacing the cable. The splines on it could be wearing out and starting to skip. I 4th the speedo, since it's a lot cheaper to fix than the valves...

 

[2doorsplor]

I HIGHLY doubt its the Spedo. My 93 does the exact same thing, Im on this forum to find out what it is. I WOULD SAY that the noise is coming from the drive-line, perhaps the gearing that sends power to the 4x4. my tucks 4x4 doesn't work now, but i still hear the noise at high speed. I think thats when its the loudest, but i bet when your next to a wall or in a tunnel you can hear it even at lower speeds. SO what down there could be worn out? U-joints? Differential?...what causes the CLATTER?!?

 

[boggs1227]

I HIGHLY doubt its the Spedo. My 93 does the exact same thing, Im on this forum to find out what it is. I WOULD SAY that the noise is coming from the drive-line, perhaps the gearing that sends power to the 4x4. my tucks 4x4 doesn't work now, but i still hear the noise at high speed. I think thats when its the loudest, but i bet when your next to a wall or in a tunnel you can hear it even at lower speeds. SO what down there could be worn out? U-joints? Differential?...what causes the CLATTER?!?

just guessing here but maybe the chain in the transfer case being worn out or a damaged transfercase unit. as far as the other ...the speedo issue....mine does make a chatter like noise as well when going over 65 mph ( thats when it really starts to hop around on the dial as well )and or it could be a bad pushrod slapping around in the valvetrain (with the lack of length on the push rod it could be bashing into a rocker arm (tickticktick)


...just my 2 cents