Question about 2000 Ford Crown Victoria
Whenever I reach a stop light my voltage drops real bad then I step on the gas and goes back to normal. it shoots back up when I hit neutral
You might need to remove the alternator and carry it down to your partstore so they can bench test it and determine if it is charging properly? It could be the voltage regulator in the back of the alternator which held by four screws?
Posted on Jan 07, 2015
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Posted on Jan 02, 2017
SOURCE: 2004 Ford Ranger Low Idle
I figured out what was going on. supposedly on ford rangers the Idle Air Control Valve (IAC Valve) goes bad. i got a trouble code looked it up and sure enough it is the IAC Valve. Under 100 bucks for the part
Posted on Jul 13, 2008
yea the 93 to 95 trucks never had a tach that works very long
and first the Tach does not make the od light blink or ck engine lgt
the crank trigger does this little thing is located right in middle front of engine between the vac pump and pwr steering pmp looks like a brass bolt with wires comming out of the back of it costs about 30 bucks (don't forget the locktite blue)
now that should fix the od lights and the ck engine but it may not fix the tach thats done in the tach driver module on back of tach in dash
you can replace this but my vote it's too expensive I did mine just fine with a after market one(50 bucks), bolted it right in front of old one, it hooks up super easy gets it's signal off the alternator stator
im sort of suprized it starts ok with a bad crank trig (eec needs to see +50 rpm to start fuel flow to injectors )
any good shop with a eec scanner can see this in just seconds
Posted on Oct 06, 2009
Check the fuel regulator at the end of the fuel rail. If if is not functioning properly it can cause the the problem that you are describing. Unfortunately other than doing an R&R with a known good regulator I do not know of a fool-proof test for this component.
Posted on May 03, 2010
How long has this been going on? When a problem like this develops, it's always a good start to check for any fault codes in your engine's computer. Autozone and a few others will do a scan for free and give you any code numbers and technical descriptions, if the computer has stored any faults.
If you've kept track of normal maintenance over time, then a low idle should be a fairly easy problem to fix. That being said, it's not so simple. The computer controls your idle speed under all conditions, and relies on several sensors and switches (inputs and out puts) to work effectively. Have your mechanic check it with the low idle, dying problem in mind. Sounds to me like it needs tweaking-idle control valve, throttle position sensor, air flow meter. See? Get the proper diagnosis, so you don't buy unnecessary parts.
Maybe our ford guru, emissionwiz, will stroll along and find your fix from memory (he's the best).
Posted on Nov 04, 2011
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