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#2451787 - 02/04/12 11:35 PM '99 Crown Vic P71 won't start with starting fluid
levistep Offline
n00b

Registered: 01/21/12
Posts: 10
Loc: Connecticut
I bought a '99 Crown Vic P71 with 99k miles from a government auction and it was listed as having a bad fuel pump. I was informed by the head maintenance guy for all of the town's vehicles that the car was driven to the spot it was at and left sitting for 1.5 - 2 years.

They obviously tried to get it running as the fabric was pulled off in the trunk by the inertia switch and the passenger headlight was removed (I believe a connection for crank sensor or something else is important in that area?)

I replaced only the pump with a cheap replacement and had a rather tough time dealing with the short wires and ended up making many splices. I also changed fuel filter and siphoned out old gas and added 3 gallons of new gas. Fuel gauge reads full when i turn key to on. I guess i could have damaged the float when removing/installing the unit, but I believe that is just a minor issue. There is voltage at the pump relay and at the inertia switch (10.6v i believe). 12.06v on battery. I removed some of the insulation on one of the COPs red wires and had a little more than 11v when cranking the engine.

I know for the most part it's either fuel or ignition problem so I opened the air intake and sprayed starting fluid for 3 seconds and then connected it back and it would not start, but just crank and crank. Doesn't that completely bypass the fuel problem and mean that it is an ignition issue? I don't think it matters, but the car is on ramps currently and the tank is hanging with the gas cap off. Any ideas?



Edited by levistep (02/04/12 11:37 PM)

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#2451900 - 02/05/12 05:00 AM Re: '99 Crown Vic P71 won't start with starting fluid [Re: levistep]
QuicksterP71 Offline
Over the Hill

Registered: 02/05/11
Posts: 2114
Loc: Ma.
i would check for fuel pressure at the engine. You can get a loaner from autozone
_________________________

1997 Crown Vic P71 95.000 miles Formerly Mass Correctional Vehicle, Buying a new Vic one part at a time. Ported and polished plenum, 70mm throttle body, Remote starter, Body Work and New Paint Job, 35% window tint, HPP Wheels off a 96, Pioneer deh-1100mp, Pioneer TS-A6882R 6*8, Pioneer Premier TS-A933P 6*9

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#2452245 - 02/05/12 06:08 PM Re: '99 Crown Vic P71 won't start with starting fluid [Re: levistep]
PHoganDive Offline
Over the Hill

Registered: 06/11/11
Posts: 1498
Loc: Mass, USA
If the crankshaft position sensor is not functioning, you won't get fuel flow, or spark...so it won't start even with starting fluid. It is located just behind the crankshaft pulley, near the air conditioner compressor.
_________________________

2006 CVPI w/120K, J-Mod, BOC Tune, Magnaflow Catback Duals, headlight relay harness installed w/ 80/100 watt bulbs, HUGE difference...:)

1996 GMQ 116K miles, Bilstein shocks, otherwise stock (Retired 7/2011)

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#2453959 - 02/08/12 03:26 AM Re: '99 Crown Vic P71 won't start with starting fluid [Re: levistep]
levistep Offline
n00b

Registered: 01/21/12
Posts: 10
Loc: Connecticut
I'll check the fuel pressure either tomorrow or Thursday and then take a look at the crankshaft position sensor. I was going to look at that sensor the other day but didn't have a wire piercing probe.

Are there scanners that can diagnose this stuff with a little bit more grace? I have the Autel MaxiScan MS300 CAN Diagnostic Scan and I wasn't seeing any codes when i plugged it in. I have looked at lists of codes and i have seen some related to fuel pump circuits and crankshaft position.

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#2455286 - 02/09/12 08:24 PM Re: '99 Crown Vic P71 won't start with starting fluid [Re: levistep]
levistep Offline
n00b

Registered: 01/21/12
Posts: 10
Loc: Connecticut
Fuel pressure gauge coming in tomorrow. None of the local auto part stores would rent them. Btw, just saw today that with the key in ON position it has 12v and drops to 0 when i start cranking.

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#2455326 - 02/09/12 09:38 PM Re: '99 Crown Vic P71 won't start with starting fluid [Re: levistep]
UrbanCowboyDan Offline
Member

Registered: 12/30/10
Posts: 187
Loc: Genesee County, New York
Okay, Try this: When you crank the car, is the "Check Engine" light on while its cranking? If it is, then it could be a problem with your crankshaft position sensor. I had a no start situation like this a month or two ago on my 1996,(I have a 2001 engine, should'nt be different then yours) the car just cranked and cranked like it wasn't getting a fuel or a spark. I checked the fuel lines on the motor via the pressure valve and it had good pressure, and could hear the pump working...turns out it was the wire to the crankshaft sensor. That wire is in a really bad location, its right near the A/C compressor on the passenger side at the bottom of the engine. The Crank sensor itself, according to what I read, is just a magnet type thing and wire so the sensor itself usually doesn't go bad, I got under my car, saw the wire was loose, sprayed the wire connector with "Electrical Cleaner" and plugged it back in, and it fired right up. If the PCM doesn't get a signal from that sensor, you'll get the CEL while cranking and a no start situation like you got here. took me literally 45 seconds to fix. I hope this is a little help to you. Good luck smile
_________________________
Back in the game with an '08 P71! 72k+ gots 3.55's with Trac-Lok!
"Its time to kick a$$ and chew bubble gum....and I'm all outta gum."

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#2455486 - 02/10/12 06:00 AM Re: '99 Crown Vic P71 won't start with starting fluid [Re: levistep]
customsportsman Offline
n00b

Registered: 11/13/05
Posts: 35
Loc: New Baltimore Mich.
Here's something else to check. When you key up to the "run" position and stay there, is the "check engine" light on? With the engine off, and the key in the run position, all of your gauge lights should be on. If the check engine light is off, then you most likely have no PCM power. This is a very simple check, and a good place to start.
_________________________
99 Crown Vic (Bought new) just sold at 223,000 miles
07 Crown Vic Sport (Just bought) 33,000 miles
02 F-150 Supercrew (bought out of Texas in 08)
1964 Dodge Custom sportsman A100 van (not bought new)

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#2455628 - 02/10/12 12:10 PM Re: '99 Crown Vic P71 won't start with starting fluid [Re: levistep]
GrandMarq9807 Offline
Over the Hill

Registered: 05/10/10
Posts: 2943
Loc: Virginia
If it won't at least try to start on a good shot of starting fluid it has no iginition(spark), check that and move on to the fuel system if necessary...
_________________________
1998 Grand Marquis LS. 61K mi.
2007 Grand Marquis GS. 61K mi.
1996 F-150 XLT 5.0 E4OD 179K mi
1988 Turbocoupe 331 AOD
1972 Comet GT 306 C4
1969 Fairlane Cobra 428CJ 4-Speed


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#2457093 - 02/12/12 07:37 PM Re: '99 Crown Vic P71 won't start with starting fluid [Re: GrandMarq9807]
levistep Offline
n00b

Registered: 01/21/12
Posts: 10
Loc: Connecticut
Vehicle is running now! Be careful of Chinese fuel pumps because they use black as positive and red as negative! I was pretty pissed, but relieved when I saw the mistake.

I am still trying to figure out why I couldn't get the car to start after spraying starting fluid for like 2-3 seconds. Do these V8s need more than that to start?

Thanks for the help

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#2457527 - 02/13/12 10:09 AM Re: '99 Crown Vic P71 won't start with starting fluid [Re: levistep]
DDK03CVPI Offline
Member

Registered: 09/23/07
Posts: 244
Loc: Eastern Shore of Md.
Ha! Classic. Went to help a friend once who had replaced his fuel pump & couldn't get the car to run. He had accidentally
reversed the wires(pump running backwards doesn't work very well!).

DDK
_________________________
2004 CVPI, Dark Blue Pearl, 106,xxx mi., 3L27 Diff., '05 6cyl Mustang wheels,MaxiTrip Gauge,Putco H/L Harness,'01 Explorer AM/FM/CD,MM rear sway bar.

2003 CVPI,Performance White, 150,xxxmi.,R.I.P. 12/10/11




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