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Ford Taurus Fuel Pump

31 messages,  Last post on Oct 11, 2009 at 1:25 AM

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#28 of 31 Ford Taurus stalls when car is hot and idles roughly by kim771 Mar 23, 2009 (1:04 pm)
Hi! I have a Ford Taurus SES 2002 88,000mi. For the past several months I have had a strange problem but now sometimes the car does not start at all. I drive to work and the car is fine - starts up no problem. I go home for lunch and after about 1/2 hour I start the car again and it idles VERY roughly and has stalled a few times. When I leave work at night, car is absolutely fine. Had a mechanic look at it a while ago and he could not find out why the stall thing is happening when the engine is hot. Just a few days ago, went to start the car and it wouldn't start....tried again a few minutes later and it started. After running, car is fine (shifting a little roughly, though). So a few times since the initial non-starting, the car doesn't seem to want to start when car is hot...I do not think it is the starter or the battery...both were replace November of 2006....but of course it could be! When the car doesn't start, it cranks, but a VERY slow/weak crand and then it will start. Does anyone think this could be a bad/weak fuel pump? Could a starter go bad after just 2 years? Thank you so much for any thoughts/suggestions! Replies to this message: oldfordmech (Mar 25, 2009 1:44 pm) newsongs (Aug 13, 2009 7:22 pm) haytim (Oct 11, 2009 1:25 am)
#29 of 31 Re: Ford Taurus stalls when car is hot and idles roughly [kim771] by oldfordmech Mar 25, 2009 (1:44 pm)
Replying to: kim771 (Mar 23, 2009 1:04 pm) At fisrt I going to say fuel pump till you got to the cranking slow problem. First have your battery charged then do a load test on the battery with a carbon pile load tester. Find the cap of the battery, load in 1/2 that rating and the volt meter mush show 9.6 volts for 15 sec. If it passes, then go to the starter, with good battery,crank the eng over when hot and rear the batt voltage while cranking voltage should stay above 9.6 volts. A good starter should not draw over 150-175 amps max. After you get that fixed lets see how it runs. and a cheap rebuilt starter may go bad in 2 years. Cliff Replies to this message: newsongs (Aug 13, 2009 7:22 pm)
#30 of 31 Re: Need help with a 99 taurus fuel system problem[oldfordmech] by newsongs Aug 13, 2009 (7:22 pm)
Replying to: oldfordmech (Mar 25, 2009 1:44 pm) Hey there!  I'm working on a friends 99 taurus 4 dr.. Towed it 3 hours to my house from his daughters place who had it before it died. My testing shows inertia switch ok( not popped) relays in the black box ok....swapped them around, however, I'm not hearing the fuel relay pull in. "0" pressure at test valve on fuel rail when in "on" or "start" Listened with a stethascope against a long drill bit shoved down the fill pipe to see if I could hear anything...nothing. So what prevents the fuel relay from turing on?? By jumping 30-87 on the relay base turns on the fans but not the fuel pump.I'm going to check grounds and maybe run a separate ground for it and secure it to the floor as recomended previously. I'm not convinced that the problem is the pump. Not till I see good voltage at the pump with a good solid ground. Do you know what colors should be what on the fuel pump harness? I'm thinking I may find crushed wires on the top side of the tank... any ideas??
#31 of 31 Re: Ford Taurus stalls when car is hot and idles roughly [kim771] by haytim Oct 11, 2009 (1:25 am)
Replying to: kim771 (Mar 23, 2009 1:04 pm) hi i own the same car for over 3 years now,sure what is happening with you is happening with me,try change the cables that connect the spark plugs but anyway it a normal thing with this car,when cold it starts slow, especially in morning but when hot it starts fine

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