Prelude L4-1958cc SOHC (1988)
Throttle Body: All Technical Service Bulletins
Campaign - Coolant Residue On Throttle Body
Model
Applicable To
File Under
Bulletin No.
1988
See VIN range
87-018
Prelude
under Affected
ENGINE
Si
Vehicles
Issue Date
OCT 9, '87
Recall:
1988 Fuel-injected Prelude Throttle Body (Supersedes 87-018 of August 21, 1987)
PROBLEM
Some aluminum throttle body castings may contain slight porosity. During vehicle usage, a small amount of coolant seepage may occur, and eventually
residue may accumulate on the throttle valve. The residue may cause the throttle valve to return slowly from slightly open positions to the normal closed
(idle) position when the accelerator pedal is released, Although the vehicle can be stopped with the brakes, the reduced engine braking while decelerating
could result in longer stopping distances. Under some circumstances, this could lead to an accident without any prior warning to the driver.
AFFECTED VEHICLES
1988 Prelude Si with VINs of JHMBA4 . . . JC000077 to JHMBA4 . . . JC014016
CORRECTIVE ACTION
1.
Check for a recall completion mark above the eighth digit of the VIN on the firewall.
^
If there is a recall completion mark, you need do nothing.
^
If there is no recall completion mark, proceed to step 2.
2.
Check the serial number on the throttle body.
^
If the last five digits of the serial number are 70711 or less, proceed to step 3.
^
If the last five digits of the serial number are above 70711, proceed to step 4.
3.
Replace the throttle body assembly using the parts listed under PARTS INFORMATION. (See the Service Manual, page 11-203, for removal.)
4.
Center punch a recall completion mark above the eighth digit of the VIN on the firewall.
PARTS INFORMATION
NOTE:
When supply of Throttle Body Kits is depleted, they will be superseded by Throttle Body Assemblies which will not include the gasket or tube
clamp.
Throttle Body Assembly Replacement Kit:
(Includes throttle body assembly, gasket and tube clamp.)
^
With A/T H/C 2788099 P/N 06164-PK2-A06
^
With M/T H/C 2788081 P/N 06164-PK2-A05