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Ford Crown Victoria/Mercury Grand Marquis General Maintenance

102 messages,  Last post on Oct 10, 2009 at 5:59 PM

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What is this discussion about? Ford Crown Victoria, Mercury Grand Marquis, Engine, Oil, Sedan

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#50 of 102 Re: Engine light on [collins14] by euphonium Feb 19, 2007 (1:10 pm)
Replying to: collins14 (Feb 19, 2007 10:36 am) Check for a low coolant level in the Reservor. Replies to this message: esfoad (Feb 19, 2007 4:00 pm)
#51 of 102 Re: Engine light on [euphonium] by esfoad Feb 19, 2007 (4:00 pm)
Replying to: euphonium (Feb 19, 2007 1:10 pm) And make sure the gas cap is on correctly and tight, this can also trigger a CEL. If it's none of the above, it's probably a sensor.
#52 of 102 Re: help with my 99 pi cv WHAT IS WRONG WITH IT ? [serge99pi] by nineteen Feb 20, 2007 (7:00 pm)
Replying to: serge99pi (Feb 10, 2007 4:49 pm) What is sounds like is that you car misfires. If it is only happened on idle , I'd believe in the Idle Air Sensor, but otherwise, I'd start checking vacuum hoses and EGR valve. Drop in vacuum can cause change in fuel mixture and engine could stutter, as well as burn more fuel. If vacuum is OK, start going through "electrical" route - plugs/coils/wires. If that checks out check fuel pump + injectors. Replies to this message: serge99pi (Feb 23, 2007 8:19 am)
#53 of 102 Re: help with my 99 pi cv WHAT IS WRONG WITH IT ? [nineteen] by serge99pi Feb 23, 2007 (8:19 am)
Replying to: nineteen (Feb 20, 2007 7:00 pm) this weekend put new idle air sensor, fuel filter I thought the sensor i put before might of been bad it starts better but still takes lots of gas 13 per gal and when i drive 30-40 miles per hr sometimes it shakes just little when my foot is on gas sometimes when i am standing at the light it will start shaking more but then i go forward and it drives perfect.Hooked it up to tester it showed nothing is wrong put out check eng than it came back it was little orange scanner they use at autozone,I hope it is nothing seruios spark plugs were changed also.PLEASE GIVE ADVICE WILL TRY ANYTHING !
#54 of 102 knocking noises on my 94 crown vic... by hottmomma315 Feb 24, 2007 (9:23 pm)
My 94 Crown Vic just started making knocking noises and a ping type of noise every few seconds and when accerlated it shakes and acts like it isn't getting enough power. All fluids have been checked. What do u think could be the problem? Replies to this message: euphonium (Feb 25, 2007 6:06 pm) jsylvester (Mar 03, 2007 8:40 am)
#55 of 102 Re: knocking noises on my 94 crown vic... [hottmomma315] by euphonium Feb 25, 2007 (6:06 pm)
Replying to: hottmomma315 (Feb 24, 2007 9:23 pm) Would be helpful to know how many miles are on the CV. If in excess of 110k, don't overlook the coil on plugs, plug wiring, and mass air sensor.
#56 of 102 Re: knocking noises on my 94 crown vic... [hottmomma315] by jsylvester Mar 03, 2007 (8:40 am)
Replying to: hottmomma315 (Feb 24, 2007 9:23 pm) Could be a lot of things, especially at it's age. But I would start with the ignition/timing system first.
#57 of 102 5000 or 3000 by fordenvy Mar 07, 2007 (8:32 pm)
I get my oil changed every 5000 miles, unlike the recommended 3000. My uncle worked for ford before buyout and told me that it was a waist of my money to change the oil every 3000 miles. He said it simply didn't get dirty enough to cause enough friction to do damage, so ford knows we only have to change it every 5000 but i think they have a scheme to get the dealerships more money for changing oil more often. what do you think? Replies to this message: euphonium (Mar 08, 2007 10:01 am) fordenvy (Mar 20, 2007 8:34 pm) confused1096 (Mar 09, 2007 4:25 pm)
#58 of 102 Re: 5000 or 3000 [fordenvy] by euphonium Mar 08, 2007 (10:01 am)
Replying to: fordenvy (Mar 07, 2007 8:32 pm) It may go without saying, but hopefully you also change filters when you change oil. Otherwise, it's like putting a new diaper on a dirty bottom. Replies to this message: fordenvy (Mar 20, 2007 8:34 pm)
#59 of 102 Oil Changes by jsylvester Mar 08, 2007 (4:35 pm)
Your uncle is right - modern oil is far superior to what it was when you had to change it every 3,000 miles. Not to mention, cars run cleaner, so less contaminants get into the oil.   That being said, cars run hotter now than before. Therefore, on an engine understressed like the Grand Marquis, I'd go with 5,000 miles. On my wife's little Corolla, we still do it every 3,000 miles.   Oh yeah - I used 5w30 in summer, - 5w20 is too thin.

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