Question about 2003 Ford Expedition

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.my 2003 ford expedition started

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Check for a vac leak. Check all small vac lines and listen for high pitch whistling noise. Ir crack in intake hose.

Posted on Apr 04, 2011

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Posted on Jan 02, 2017

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This engine has a surge; AT 35-45mph,it's a bit more prounounced, not as bad, but still there at 60mph. As the tach goes up some, then down, so does the motor, up then back down, etc.Any ideas?


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Feb 09, 2016 | Cars & Trucks

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Why won't my 2003 ford ranger 3.0 accelerate past 40km/h


Not sure what you have determined the truck is doing

If the rpm flairs the trans is slipping & done

If it won't go over 40 mph the exhaust converter is damaged
& blocked

Not much you can do,need professional help

May 14, 2014 | 2003 Ford Ranger Regular Cab

1 Answer

What should the fuel pump pressure be for a 2003 Ford Expedition 4.6L


Generally speaking, multi-port fuel injection runs between 30-40 psi at idle.

Feb 25, 2013 | 2003 Ford Expedition

1 Answer

I have 1997 ford expedition hose is leaking air at the other end of the pcv valve not the valve cover end . how do i fix this? i have a 5.4 engine > looks almost impossible to get to for repair.


I recently changed out all the plugs and coil packs on my 1997 expedition. After replacing them, the truck idles fine and revs fine but once it goes into gear it seems to way a million pounds. When I try to accelerate the rpms go up by the speed will only top out at about 20mph and the transmission will not seem to shift into the next gear easily, kinda jumps into gear. I found a hole in my pcv valve hose, I plan to replace it tommorrow. Could this cause my engine to bog down during acceleration and make it feel as if my transmission is going out?

Jun 10, 2010 | 2001 Ford Escort ZX2

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2003 Ford Taurus wants to die when coming to a stop


TRY THIS AND LET ME KNOW IF IT CORRECTS YOUR PROBLEM
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

Mar 17, 2009 | 2003 Ford Taurus

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