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2006 F-150 Triton 5.4 Engine -- ticking sound at idle on the top of the motor. Is it a phaser or injector problem? Does it need to be fixed? I just bought the truck 50k on it.
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Injectors do make quite a racket but mostly they are so well insulated they can't be heard inside the car and in the engine compartment the noise just becomes part of the general engine noise.
I have noticed a few cars where the use of semi-rigid (nylon) fuel supply and return pipes transmit the noise to the bulkhead/firewall which magnifies the sound.
You may be able to ask a Dealer to look at the Vin# ID for the truck to verify. The older 1999 used 3 valves and then the next year or so the engine changed to 4 valves. This was also when the 1999 body style was carried into 2000 for the Heritage Edition. Can not say if the old style body made as a 2000 Heritage had a different engine. The older models did not have "Cam Phasers" which were problematic on the newer generation engines. Sometimes parts stores have access to Vin# requirements in their parts manuals.
Depends on the miles of the engine also, could be a cam phaser or it could be carbon chunks caught in the lifter, could be a weak lifter spring. Valve cover will have to come off to find out.
If the ticking sound sounds like it is coming from the top of the engine them most likely one of the lifters is bleeding off while it is sitting. If the ticking goes away after a few minutes of operation then the lifter has pumped its self back up and is operating properly. There is not any damage you can do to the engine by not replacing the lifter at this point, just the annoying ticking sound when first starting. If at some point the ticking continues after running for a few minutes the lifter has malfunctioned and should be replaced. Just remember, if you replace one lifter you should replace all of them.
THESE ARE THE CONCERNS AND MOSTLY CAUSED BY NON FL820 OIL FILTER AND PROPER OIL 5/20. THESE TRUCKS ARE VERY SENSATIVE TO AFTERMARKET OIL FILTERS,AFTERMARKET OILFILTERS PLUG OIL GALLEY'S BECAUSE OF DETERIORATION. FL820 MOTORCRAFT FILTER ALSO HAS A ANTI DRAINBACK DIAPHRAM IN OIL FILTER TO KEEP OIL IN TOP END FOR COLD STARTS SO ENGINE WONT BE OILSTARVED ON CODSTARTS. PROBLEMS IT CAUSED IS CAM PHASERS,IF ENGINE CAN REV TO 2000RPM AND NOISE IS GONE IT'S CAM PHASERS. LASH ADJUSTERS ALSO GET DAMAGED AND CAN CAUSE A TICK NOISE LOUDER THAN INJECTORS. ENGINE IS NOT REALLY COMPROMISED AT THIS POINT BUT IT'S AN ANNOYANCE. IF WANT IT FIXED GO TO THE DEALER,THEY ARE WELL INFORMED WITH THIS CONCERN ON 5.4 3V. NOT TO CHANCE AFTERMARKET SHOP CHALLENGING THIS,PARTS FOR THESE ENGINES ARE BUILD DATE SPECIFIC AND DON'T WORK WELL WITH AFTERMARKET PARTS. SEE A VERY REPUTABLE DEALER FOR ANY CONCERNS PLEASE.
pritty much. The lifters are making the sound. Chevy motors do it as well. I do not like it but both manufacturers say it is ok. I do not hink they should have metal on metal like that. The only 2 things that the triton was known for is the head gaskets leaking from the head on the rear passenger side of the motor down on the starter and coolant leaking from the heater core hose down on the passenger rear coil and spark plug. Good motors they seem to run for ever.
You have the 5.4 3 valve engine in your Navigator, Ford has had various problems with noise from this motor. The cost of repair will vary because this noise cam come from different places, such as cam phasers, valve lash adjusters and sometimes the ticking noise is actually coming from the injectors which is considered normal. I would have it checked out by the dealer. -Jared
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