92 Ranger Loud clunking with rough idle | Ford Explorer Forums

  • Register Today It's free!

92 Ranger Loud clunking with rough idle

steadyhand

Active Member
Joined
May 5, 2010
Messages
98
Reaction score
0
City, State
Missouri
Year, Model & Trim Level
99 Mercury Mountaineer
I recently bought a 92 Ford Ranger, 2.3l, 5 speed. This truck was bought simply to use as a backup that would be cheaper on fuel. When I first looked at the truck, it ran and shifted fine. It had/has a check engine light but these trucks are fairly simple to work on so I went ahead and bought it.

I got the truck home and right away it started to manifest some problems. Odd how that always happens. My first concern is a very loud clunking sound when the engine is idling and when driving down the road. It is so loud it sounds like a bad motor mount, but the clunking is random and sometimes hits harder than others.

I got to looking around to find the noise and I noticed the previous owner stuck two 2x4 blocks between the cross member and the transmission.
Why do you suppose he would have done this? He did say the transmission was recently rebuilt and it does look like someone has had it open recently. It shifts great but I don't understand why he put the blocks there and I don't want to take them out just yet.

The engine is running rough due to a bad ECT sensor and ECM module. I just replaced the ECT sensor and backflushed the cooling system to get some rust out. The ECM is next.

The smoother the engine runs, the less the clunking occurs during idle. However, as soon as I start driving down the road you really hear the clunking. The cross member and transmission mount at the rear of the transmission, near the tail of it, look ok to me. The bell housing appears to be mounted right with no missing bolts. I don't know what these should look like underneath. Hopefully someone else has some insight on why this was done.



 






He was probably just using those blocks to hold it while he got the bolts in the bell housing and forgot to knock 'em out.

Can't help with the noise though, I can't here it to good from here.
 






Wow, that's messed up! I think the clunk has to be from the blocks! I would get a jack under there with a small wood block on top of it (ironic) and take the pressure off the blocks, remove them, and sloooowly lower the jack and watch if anything lowers down with it. If the trans stays in place, then take for a test spin.

BTW, moving this thread to the Ranger forum.
 






Featured Content

Back
Top