900 L4-2118cc 2.1L DOHC (1992)
Air Bypass Valve: All Technical Service Bulletins
Engine - Poor Starting/Driveability Concerns
CATEGORY
Engine
SECTION
2
PAGE
18
ISSUE
05/92-0205
CODE
291
Subject:
Replace Hose Clamps on the Turbo-charger Bypass Valve
Application:
900/9000 Turbo Models as Specified
Service Directive
The Turbocharger bypass valve, Figure 1, is secured to the induction hose with plastic hose clamps, P/N 79 77 234. A service directive is being issued to
update earlier cars with metal hose clamps, since the plastic hose clamps can crack under high temperatures. A cracked or broken hose clamp can result
in poor starting or driveability.
NOTE
This PSI is identified as a "Service Directive," meaning that affected cars should be corrected before delivery if possible, or at the next service
opportunity, regardless of whether there has been a customer complaint. A "Service Directive" differs slightly from a "Campaign". Owners are not
notified to bring their car in for unscheduled service under this procedure.