1999 Ford Taurus Intermittent Start Ups

BMMROHRER

MEMBER
1999 FORD TAURUS
6 CYL
2WD
AUTOMATIC
141,000 MILES

Hi I am having a problem for the last couple months with my Taurus. In the morning it usually starts right up. I drive it fine. If it sits for a long time (like hours), it will start up again. But if I drive it for errands or something, with a lot of start ups in a short period of time it eventually wont turn over when I want to start it again. It really sounds like it wants to but it just wont turn over. I have done the following. Replaced battery, checked alternator (is fine), replaced spark plugs, replaced fuel filter. Running out of ideas. It's VERY random. If it doesnt start I usually wait an hour or more and then it just starts up like nothing was wrong. It's very annoying. Any help out there? Thank you!

Thursday, July 29th, 2010 AT 5:51 AM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

If it refuses to start don't wait for nothing- do below to find out if its fuel or spark problem that's causing it not to start-something has to give.

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing.

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Wednesday, May 3rd, 2017 AT 11:47 AM