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Ford Crown Victoria and Mercury Grand Marquis

3244 messages,  Last post on Aug 25, 2009 at 8:13 PM

You are in the Ford Crown Victoria/Mercury Grand Marquis Forum. Your Hosts are pat & karens

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


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#3231 of 3244
Re: 1994 MGM Fuel prob? [aviatordave] by euphonium
Feb 17, 2009 (10:30 am)
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Replying to: aviatordave (Feb 17, 2009 8:41 am)

I agree. Mass Air Flow Sensor is to be replaced or spray cleaned.
#3232 of 3244
Re: 1994 MGM Fuel prob? [euphonium] by aviatordave
Feb 17, 2009 (1:16 pm)
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Replying to: euphonium (Feb 17, 2009 10:30 am)

So the mass air flow sensor would keep the vehicle from actually starting?
#3233 of 3244
Re: 1994 MGM Fuel prob? [aviatordave] by euphonium
Feb 17, 2009 (2:27 pm)
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Replying to: aviatordave (Feb 17, 2009 1:16 pm)

Have it spray cleaned and see. Is it the original MAF sensor and how many miles on it?
 
22 Jun 04 108,597 Replaced MAF Sensor on our 94 Town Car. Result = like it was new again and towing the boat was a pleasure.
#3234 of 3244
Re: 1994 MGM Fuel prob? [euphonium] by aviatordave
Feb 17, 2009 (3:27 pm)
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Replying to: euphonium (Feb 17, 2009 2:27 pm)

OK. I see it is right next to the airbox. The car has 122k on it, but until lately had run excellent. It looks like the original MAF Sensor but I see they used the special torx screws to hold it down. I'll have to get the right tool at work tomorrow and take it off to clean.
 
Just for grins I tried to start it again, I hear the fuel pump operate and the engine just turns over, never starts......arrgggggggg
#3235 of 3244
Re: 1994 MGM Fuel prob? [aviatordave] by euphonium
Feb 17, 2009 (7:18 pm)
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Replying to: aviatordave (Feb 17, 2009 3:27 pm)

Hope you use the recommended spray cleaner. (Don't know what it is.) Because it was replaced, but remember to be very careful with the two prongs. Spray them well, but don't touch them as well.
#3236 of 3244
Re: 1994 MGM Fuel prob? [euphonium] by aviatordave
Feb 18, 2009 (5:43 am)
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Replying to: euphonium (Feb 17, 2009 7:18 pm)

Great. I gotta use a certain type of cleaner? I'll have to look into that.
 
Also, someone else told me that if the MAF is unplugged then the car might start but run on the rich side. Did anyone hear of this before?
 
I'll try it later today, I have nothing to lose.
#3237 of 3244
Re: 1994 MGM Fuel prob? [aviatordave] by mrlauderdale
Feb 18, 2009 (7:36 am)
Reply

Replying to: aviatordave (Feb 18, 2009 5:43 am)

Hello there,
 
I have a 1996 Marquis and have already posted my experience with that kind of problem a while ago. Before you open the MAF and try to clean it, unplug it and see if the car is running wild but also better. If it is doing that, itīs probably the MAF. I tried to clean it like many said on the internet, but that didnīt help, I had do get a new one!!
 
Some people reported, that after thy cleaned it, 3 month or so later they had to buy a new MAF anyway..
 
Good Luck
#3238 of 3244
Re: 1994 MGM Fuel prob? [mrlauderdale] by snowbird6
Feb 18, 2009 (2:03 pm)
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Replying to: mrlauderdale (Feb 18, 2009 7:36 am)

Hi Ref. my comment on the use of a chemical cleaner - The mechanic used a "Carburator choke cleaner" to clean the MAF on my 96. That was two years ago and it is still running "ok".
#3239 of 3244
by aviatordave
Feb 20, 2009 (7:03 pm)
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Well it turned out not to be the MAF. I guess I had a couple spark plug wires that had very high resistance. I just got fed up with this problem and took it in to the local shop. It cost me $70 for them to tell me the problem, its worth it to me.
 
I'll change all the plugs and wires tomorrow and see how that goes.
 
-Dave
#3240 of 3244
by aviatordave
Feb 22, 2009 (5:01 pm)
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All fixed. Runs great, like a new car again.
 
All this over plug wires.....they even looked new under the hood before I changed them. They wanted to charge me $230 to replace the plugs/wires with labor. I got the parts at autozone for about 70 bucks and it took me 45 minutes.
 
I'm ready to roll!
 
Thanks all for your help and insight!
 
-Dave

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