S2K_Guy

So my friend is having a problem with his suv. It has started ticking, I'm thinking timing belt because it has 150k on it and he doesn't think it's been changed yet. He's driven it to the 757 from Colorado and is leaving for Charleston soon. Can anyone help?

C Ory

Timing belt isn't going to make the car tick. Timing belt tensioner may, but it all depends on what type of tick it is. What motor is in the Rodeo? 4 cylinder or v6?

S2K_Guy

Its the v6.

DOHCda

3.5L DOHC?? those are known to have sticky lash adjusters once they get some miles on them. Put a half a quart, yes i know it seems like alot but it will help unless the cam is worn down to the point where there is too much clearance between the lash adjuster. Put the atf in there 50 miles before the next oil change and see if that helps.

Gustav

Direct from Isuzu......


BULLETIN NUMBER:
SB00-01-S009

ISSUE DATE:
SEPTEMBER 2000

GROUP:
ENGINE

TICKING SOUND FROM HYDRAULIC VALVETRAIN
(Supersedes SB00-01-S002)

NOTE : This service bulletin is being revised to update parts information.

AFFECTED VEHICLES

Some 1997 and earlier Trooper (UX) and Rodeo (UC) V6 models

SERVICE INFORMATION

Condition:
The above affected vehicles may exhibit a condition of ticking sounds coming from the valvetrain during normal operation.

Possible Cause:
One or more hydraulic lash adjusters do not fully extend due to varnish build-up inside. This condition results from exceeding the required oil and filter change intervals. Severe driving conditions require more frequent oil and filter changes. (Refer to appropriate Owner's Manual or Workshop Manual for details.)

Correction:
A typical repair for the condition may involve the replacement of the affected rocker arm(s), and rocker shaft(s). However, follow the information in this bulletin to perform an oil/filter change using 0W-30 Mobil 1 synthetic engine oil, prior to replacing any valvetrain component.

NOTE : Although the current recommended engine oil for these engines is 10W-30 API SJ, the 0W-30 synthetic engine oil allows air in the hydraulic lash adjusters to bleed out quickly and removes the varnish that is preventing hydraulic lash adjuster piston travel.

S2K_Guy

Thanks for the information that's a great help