Hydraulic Control Unit - 2001 3.4

drewjohnson

New member
First, thx to all the awesome forums that helped me decide on my recent 2001 3.4 Sport pkg purchase. Much appreciated.

Purchased this vehicle from a dealer locally, 89K miles, clean interior and auto report.

No issues first two weeks but noticed a small stain on my driveway under engine compartment. Contacted the dealer (Ford), and they asked I bring it in (they are working with me). They diagnosed it to the Hydraulic Control Unit (HCU), which appears to me to the be the master cylinder + other functionality. They can see the fluid being pushed out of the front of the unit when the brakes are depressed, thus the stains/puddles under my truck (ran down frame rail, dropped to ground...).

Curious...they noted the new part from the dealer to be $2,000, but they found a used one for ~$300 (which I'm OK with, as they stated it came off a vehicle with 50K miles, sure I'm trusting). Is this the true price? I did some Googling and couldn't find much (read anything) about replacing a HCU on a 4 runner. Is it mis-diagnosed? Should I be telling them to look elsewhere?

Thanks in advance for your replies - Drew
 
Last edited:
Register to hide this ad
wanted to include an image of where (according to the dealer) the leak is coming from (attached):
 

Attachments

  • 4runner-hcu-leak.jpg
    4runner-hcu-leak.jpg
    28.1 KB · Views: 546
If I remember correctly I think the ABS is integrated into that too which would explain the high price of it from the dealer, but I would have to look under my hood and double check. Nothing really goes wrong with my truck (knock on wood LOL) so I don't look under the hood much. Mine is an 02 SR5 2WD.
 
from my reading...yes, the ABS control is integrated into this unit. To update, the dealer called today and noted that they were having issues bleeding the brakes (after used unit was installed). Tomorrow will be day 4 in the shop. Thank goodness they gave me a Ford Focus to drive during the process:p
 
Conclusion: the dealer installed the used HCU, and so far (2 days) no leaks. They were decent about it, but I had to split the cost. Out the door @ $272. Could have been worse.
 

Members online

No members online now.

Forum statistics

Threads
278,306
Messages
3,554,045
Members
248,016
Latest member
Advally Service

Trending content

Back
Top