- #3.0l ford tsb misfire taurus how to
- #3.0l ford tsb misfire taurus install
- #3.0l ford tsb misfire taurus manual
- #3.0l ford tsb misfire taurus code
This problem affects also Windstar and Ford trucks vehicles. Metallic fuel rails are close to hot lower intake manifold of the engine so they become very hot. Metal is very heat conductive, so it become hot when it's close to heat radiation. Taurus 2002 with 3.0L OHV and Windstar with 3.8L engines have metallic fuel rails. Wraping insulator sleeve (heat shield) around the injector protect it against heat radiation. So when vehicle is parked for 10-20 minutes, the fuel remained in hot injectors and rail become very hot and vaporises causing rough idle. Heat is irradiated from lower intake manifold to fuel injector and rails, causing the injectors, rails and the fuel to be very hot after a long drive. The dealer installed a heat shield around injector #3 and a shield on the intake manifold:
That's an example of fix for a Cherokee 2000. Then attach the splitted sleeve with tape or tie-wrap. I suggest to wrap a cutted insulator sleeve or rubber hose around all injectors and fuel rails. Solution might work with Ford engine as well.
#3.0l ford tsb misfire taurus install
They suggest to install an insulator sleeve wrapped around fuel injectors.
#3.0l ford tsb misfire taurus how to
Jeep explains in the TSB how to fix this issue. High octane fuel has lower boiling point and it doesn't contain ethanol on certain stations, where regular contains up to 10%. I suggest high octane premium fuel w/o ethanol. So I suggest to NOT use fuel blend with 10% ethanol if you have the choice. They said that the problem can be aggravated by the use of fuel contening ethanol.īecause ethanol fuel has a lower boiling point, thus it's more volatile than pure gasoline. Jeep has the same problem as Ford, just like other car manufacturers like Acura, Honda, Volkswagen. I've also searches more infos thru the internet, and I found out that Jeep also has these issue with their 1999-2004 Cherokee, Wrangler, Grand Cherokee and they make a TSB including a solution for the problem. So the fuel has more chances to boil and cause problem. Taurus' engine heats a lot, it doesn't have a very efficient cooling system as Chevrolet Impala for example. So will help the vapor to condense into liquid. It will increase fuel pressure and thus, fuel boiling point. It also help to cool the engine with fresh air inside the engine compartment and having fuel at faster rate and higher pressure to condensate fuel.Īlso before starting, cycle key on(1 sec)/off/on(1 sec)/off/on(1 sec)/off, then start. And don't temporary turn off the engine for nothing until arriving at destination. So when it runs rough, we should press to the gas to quickly clear and condensate the fuel vapor from the injectors and bring cold fuel at higher rate and higher pressure from the fuel pump to cool down the injectors. The cause of the problem is when fuel remains too long inside hot injectors and fuel rail, it becomes too hot and vaporises within the injector and rail, especially with very volatile winter-blend fuel when it's relatively hot outside for winter, so it causes vapor lock and fuel starvation because fuel has more difficulty to flow because of the vapors, so that causes misfire because of the lack of fuel injected, until vapor is cleared from injector or condensated and cold liquid fuel arrives and fuel debit increases.
I've searched infos thru Ford TSB, and I found a TSB for that issue saying that idle can be rough after a hot soak start with winter fuel and there's nothing we can do for that. I also had once check engine light and the codes P0300 and P0316 and they clear up after 5 minutes of driving. It happens after I restart my warm engine in winter, it runs rough for 30 seconds and I also feel a 2 seconds delayed accelerator response like if I had low fuel pressure. Tech Tip courtesy of CARDONE Industries, Inc.I have a Taurus 2002 with the 3.0L OHV Vulcan engine and I had a "Hot soak start rough idle" intermittent issue. This ProTech bulletin is supplied as technical information only and is not an authorization for repair.
#3.0l ford tsb misfire taurus manual
Please refer to the TSB and the vehicle service manual for complete detailed instructions. Also, depending on how many COP codes are set, it may be necessary to replace one or more COP(s) and the ECM.
#3.0l ford tsb misfire taurus code
If no date code of any kind is present, the plugs must be replaced. The TSB involves checking for the presence of a date code (example shown in Figure 1). Unless these spark plugs are upgraded, the failure of perfectly good replacement components will continue. The wrong plugs generate excessive RF interference, resulting in damage to the PCM and COP(s). Incorrect spark plugs may cause damage to the COP(s) and PCM.įord TSB 09-2-6 refers to COP and PCM damage due to the installation of incorrect spark plugs.
No change in performance after replacing components or repeated failure of replacement components. Setting fault codes for coil-on-plug (COP) or Powertrain Control Module (PCM).
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