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Ford Crown Victoria/Mercury Grand Marquis Electrical/Lighting

122 messages,  Last post on Nov 05, 2009 at 5:55 PM

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What is this discussion about? Ford Crown Victoria, Mercury Grand Marquis, Lights, Electrical, Sedan

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#84 of 122 1994 MGM engine stops running at long stoplights by 94mgm94 Aug 25, 2008 (1:47 pm)
I had replaced the MASS AIRFLOW SENSOR a couple of weeks ago because during cold starts I would have to wait a couple of minutes just to warm up the car before the car could move forward, it would basically jerk back and forth and stall before pressing on the gas. Now, that doesn't happpen, after it was replaced no more hesitation, but now I don't hear the engine, no more rough idling, the engine is quiet as if It is about to die on me. While in drive and when at a long stoplight, or railroad crossing, my engine would just shut off, its as if it never reaches idle. I was thinking it can be the AIR BYBASS VALVE but there many names for that. I really think it soething to do with my idling. Anyone please help....I have had my car for four years and I never had a problem until now?!? Replies to this message: ingabanga (Nov 27, 2008 12:48 am)
#85 of 122 Re: 2005 wipers not working correctly [confused14] by captdan3 Oct 04, 2008 (10:08 pm)
Replying to: confused14 (Jan 06, 2008 11:09 am) I have the exect same problem with my 2005 CV police package car. What is the cure ? Are the part around to fix it ?   CaptDan3aol.com
#86 of 122 Ground Problem? by georgc Oct 11, 2008 (7:40 pm)
My Car: 2000 Mercury Grand Marquis, 81,000 miles. I have had the car for three years. About two months ago I noticed the following: The idle was faultering. Also, when using the turn signals, the digital temperature indicator light would dim and brighten with each flash of the signal. I had the alternator and battery tested. The battery was bad. I replaced the battery. The Idle has returned to normal. However, the temp. indicator light still fluctuates in brightness when the turn signals are on. The mechanic said it was because of normal drain of the amperage from the battery. Do I have a ground problem? Please help.
#87 of 122 2001 MGM 4.6 engine elec. failure while driving by snowbird6 Oct 28, 2008 (1:10 pm)
elec. fault causes computer circuit to "open" causing ignition failure. Restarts and runs normally after o/a 30 seconds. Has happened 4X. May run 100 or 1000 miles before next incident. No codes. Ford doesn't see it as a safety problem! Have replaced fuel pump, plugs, wires, and #8 ign. coil. 1800 miles since repl. coil - no incident. Been told that there is info out (not by Ford) that says that #8 coil temporarily shorts out, and sends elec. surge to computer which senses the surge and opens the circuit to protect itself. The engine will crank immediately, but will not start. Temp light flashes as engine stops. Other elec. systems still operate OK. Has occured at various speeds. Anyone else? Know about it? Any solutions?
#88 of 122 Re: 1994 MGM engine stops running at long stoplights [94mgm94] by ingabanga Nov 27, 2008 (12:48 am)
Replying to: 94mgm94 (Aug 25, 2008 1:47 pm) its your VACUME HOSE! i had the EXACT same problem! you have a small hole in your vacume hose. its a 3 way hose on the rear left side of your engine
#89 of 122 Intermittent electrical problem by RCthiesen Dec 07, 2008 (8:06 pm)
I have a 02 MGM that has an intermittent electrical problem. For no obvious reason the parking and head lights will go on, the horn will start blowing, the seat belt light and defroster light will light up and the radio and climate control light will start blinking. There is a clicking sound under the dash, above the accelerator and in the fuse box next to the battery. The sound under the dash board is inside a module like box that if I hit the box hard enough everything goes back to normal. This problem shows up at odd times. Once from leaving the yard and going over a bump, once running down the freeway, once after openning the door to get in to start the car. I have disconnected the horn so that it does not embarrass the driver.
#90 of 122 84 Crown Vic electrical by gearhead11 Feb 04, 2009 (8:50 am)
I just purchased this vehicle and twice now the lights came on by themselves. Could it be a faulty headlight switch since it has a time delay built in it? Also it seems to idle pretty fast to me. Vaccum leak? Replies to this message: euphonium (Feb 05, 2009 9:13 am) gearhead11 (Feb 05, 2009 9:45 am) gearhead11 (Feb 08, 2009 5:50 pm) and 1 more...
#91 of 122 Re: 84 Crown Vic electrical [gearhead11] by euphonium Feb 05, 2009 (9:13 am)
Replying to: gearhead11 (Feb 04, 2009 8:50 am) You may have your "automatic" light switch on. There is a sensor on top of the dash that governs when the lights go on. If that sensor is covered up, the lights will switch on. Naturally, the sensor detects very dark days and nights.   The switch also may have the feature of "delayed off" which turns them off after removing the key from the ignition.   As to the fast idle, I think it is factory set. Replies to this message: gearhead11 (Feb 05, 2009 9:45 am) gearhead11 (Feb 08, 2009 5:50 pm) euphonium (Feb 08, 2009 8:04 pm)
#92 of 122 Re: 84 Crown Vic electrical [euphonium] by gearhead11 Feb 05, 2009 (9:45 am)
Replying to: euphonium (Feb 05, 2009 9:13 am) thanks. I have the switch turned off. I haven't seen the sensor on the dash. I wonder if I can replace the headlight switch with one that doesn't have the delay? Replies to this message: gearhead11 (Feb 08, 2009 5:50 pm) euphonium (Feb 08, 2009 8:04 pm)

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