1992 Ford Crown Victoria ticking after warm up

SLAPNTICKLE

MEMBER
1992 FORD CROWN VICTORIA
V8
2WD
AUTOMATIC
125,000 MILES

I have a 1992 Mercury Grand Marquis 4.6 SOHC, that is ticking after it warms up. There is no other symptoms. The ticking is coming from the top passenger side of the engine, mainly from the injectors. Using a stethoscope the sound is loudest right on each injector. The ticking is also in sync with the injectors. The drivers side also ticks but nowhere near as loud as the passenger side. I know that injectors do tick slightly but this ticking can be heard 30 feet away from the car with the hood down. Do I have bad injectors or is there something I'm missing? As I said, when the car is cold you don't hear any ticking.

1 Reply

MERLIN2021

MECHANIC
17,250 POSTS

FUEL INJECTORS (DEPOSIT RESISTANT): IDENTIFICATION TECHNICAL SERVICE BULLETIN Reference Number(s): 93-15-7, � Date of Issue: � July 21, 1993 Superceded Bulletin(s): 93-7-5, � Date of Issue: � March 31, 1993, 90-23-7, � Date of Issue: � November 7, 1990 Related Ref Number(s): 90-23-7, 93-15-7, 93-7-5 ARTICLE BEGINNING FUEL INJECTORS - DEPOSIT RESISTANT TYPE IDENTIFICATION INFORMATION Model(s): Ford: 1990-93 Taurus, Tempo 1991-92 Probe 1991-93 Crown Victoria, Mustang, Thunderbird 1992-93 Escort Lincoln-Mercury: 1990-93 Continental, Sable, Topaz 1991-92 Mark VII 1991-93 Cougar, Grand Marquis, Town Car 1992-93 Tracer Light Truck: 1990-93 Bronco, Econoline, F-150-350 Series 1992-93 Aerostar, Ranger 1993 Explorer Medium/Heavy Truck: 1991-93 F-600, F-700 Bulletin No.: 93-15-7 Date: July 21, 1993 93-7-5 dated March 31, 1993 90-23-7 dated November 7, 1990 NOTE: This bulletin supersedes the following Technical Service Bulletins: Page 1 of 3 FUEL INJECTORS (DEPOSIT RESISTANT): IDENTIFICATION -1992 Ford Crown V...ISSUE Charts have now been developed to assist in identifying vehicle applications that contain Deposit Resistant Injectors (DRI's). ACTION Deposit Resistant Injectors on 1990-1992 vehicle application can be identified by the color of the fuel injector body. DRI part numbers (-9F593-) begin with "F" with the exception of the 4.0L engine applications. Refer to Fig. 1 . All 1993 model year applications contain DRI's with exception of the 4.0L Aerostar. WARRANTY INFORMATION WARRANTY STATUS: Information Only. OASIS CODES: 404000
NOTE: Cleaning of Deposit Resistant Injectors (DRI's) is not reimbursable under warranty. NOTE: Cleaning is still allowed on 1993 4.0L Aerostar.