Question about Cars & Trucks
I have a 2002 mustang 4.6 i had ticking problem and no oil pressure. i replaced oil pump with high pressure pump new timing chain all from ford. i had great oil pressure i let the car idle for about an hour took it around for a quick test drive for about a minute then brought it back to garage and lost all pressure.. and ticking returned... does anybody know what couldve caused this?
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Posted on Jan 02, 2017
It may take as much as 60 PSI to overcome the fuel pressure regulator. No, you can't blow through it. I suspect you have a fuel starvation issue. It could be a clogged fuel filter. It may more likely be a pressure leak inside the tank. That pressure gauge you mentioned comes highly recommended at this point. There is a flexible line connecting the pump to the metal line in the tank. If it ruptures, you have only minimal pressure, and the vehicle starves for fuel. Using the gauge, turn the ignition on and off a couple of times, (do not start) If the filter is choked, you will still achieve pressure to overcome the regulator. If it never makes that much pressure, then it is the flex or the pump itself. My first experience with this I found the rupture after the third pump! Embarrassing!
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Posted on Dec 30, 2008
I have a 94 YJ gave me the same issues and I did all you did and more.
Finely I was told that penzoil has a parfin base which lends it self to the cause. I don't know if it is true or not I'm just a shade tree mech. I switched over to full synthetic and WA-LA It took a couple of changes after a good cleaning but I've been TICK free for a over a year now. since I do my own change it helps hold the cost down. I was also told I needed lifters and a rebuild & all that jazz so I figured that if she was gona die I'd deal with that when it happens so far so good.
Posted on Oct 05, 2009
My 2002 Ford Escape had exactly the same problem as described. Dealer replace oil pressure sending unit (oil pressure switch) and problem still existed while leaving dealer about 3 miles away. I took the car back to the dealer again in two days and the oil pressure light kept of blinking sporatically all the way to the dealer. Dealer checked connections and they drove the car around and the oil pressure light never came on. I picked the car up from the dealer and I've had no problems with the oil pressure light flashing. I wonder if there is a microprocesser in the oil pressure sending unit which has to be given some time to be recalibrated to the cars main computer module?
Posted on Feb 02, 2010
Removal and Installation
NOTE: Inspect integral oil pan gasket for cuts or damage that may cause leaks. Install a new gasket if necessary.
NOTE: Fill the engine with clean engine oil.
To install, reverse the removal procedure.
Posted on May 08, 2010
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