Stalls Above 90 Degree's - Taurus Car Club of America : Ford Taurus Forum
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post #1 of 44 (permalink) Old 06-25-2005, 03:39 PM Thread Starter
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My son's 94 3.8 has stopped running 3 of the last 4 years above 90 degree's. Just 3 or 4 times each year. Ok last year. Failed twice this year in Michigan. First time was 65 mph at expressway. Had no spark and there was pressure at valve in fuel rail. Now it fails in slow traffic. Will run after 30 min.
Because of lower temp thermostat, new rad, hoses it runs cooler than most. Runs perfect otherwise. This has ocurred over 60k miles.
I have replaced one at a time the ign module (this is what it acts like) ign coil, pickup in dist. and Integrated Relay Control Module (this contain fuel pump relay, fan relay and the ECC power relay) and is mounted above rad on this car. But this IRCM was from A junk yard (think I will get a new one). Can't make it fail on demand. Hard to work on a hot engine in the middle of traffic. Still think it's spark but will do a fuel pressure test and change fuel filter. I got to thinking that the IRCM was it because pouring cold water on it (twice) would make it start right up and run fine. That's the only times it would run before 30 min. thanks.....
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post #2 of 44 (permalink) Old 06-25-2005, 04:41 PM
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Hi, I had the same symptoms many years ago with my 1990 Gen 1 Taurus. It baffled me----car died in hot weather, especially idling at red lights. After lots of mystical brainstorming & checks it turned out to be a weak ignition wire between coil & distributor----the short one $3.00. Try a new piece there----might do the trick-----Had same problem with a Honda---same wire. Good luck!
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post #3 of 44 (permalink) Old 06-25-2005, 04:42 PM
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I'm not sure...but I think the 1994 might have been subject to the TFI issue?

I'd say replace the TFI module...

Current Vehicals:
1998 Volvo V70 AWD 196,000 (project)
1998 Volvo S70 T5 206,000 (daily driver)
1996 Ford Taurus LX 187,000 (rusted out, but drives)
1980 Mazda RX-7 Anniversary X 142k (project)



Past Vehicals
1993 Isuzu Trooper (junked)
1992 Ford Tempo GL (sold)
1992 Subaru Loyale (sold/junked)
1994 Toyota Camry LE (sold)
1996 Ford Taurus GL (junked)
1994 Ford Aerostar Cargo (sold)
1993 Ford Taurus (traded)
1990 Ford Tempo GL (sold/junked)
1987 Dodge Aries (junked)
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post #4 of 44 (permalink) Old 06-26-2005, 08:19 PM Thread Starter
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Thanks, Replaced TFI (ign module) first. On the 3.8 the TFI module is mounted in the air intake by windshield (doesn't get hot) and is not part of the recall. I'll check and replace the coil wire, that's a good one. I ordered a new IRCM (integrated relay from RockAuto (good price and made by AC DELCO). That I learned from another post.

2002 Taurus Sel Wagon 3.0 (24V)
1999 Ford F-250LD 5.4 4X4
2014 F-150 5.0
1989 Bronco Full Size 5.0
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post #5 of 44 (permalink) Old 06-26-2005, 09:39 PM
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so does it still stall?


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post #6 of 44 (permalink) Old 06-28-2005, 06:05 PM Thread Starter
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The part from Rock Auto is in transit. It only fails above 90* and we had 3 last year here in Mich. 10 so far this year. 3 failures so far this year. But it has failed in the middle of a busy intersection with honking horns and my grandkids. Last time it failed in front of a 7/11 my son when in and bought a coke and poured on the fan control and it started right up and ran fine. I don't know if it was diet. Will change intergrated control, fuel filter and check coil wire this weekend...then even if it doesn't fail rest of summer we won't be sure it's fixed. My next door neighbor has a 94 Sable, same car and his fails the same way and the same parts have been changed and is just as intermittant. Both cars run perfect otherwise.

2002 Taurus Sel Wagon 3.0 (24V)
1999 Ford F-250LD 5.4 4X4
2014 F-150 5.0
1989 Bronco Full Size 5.0
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post #7 of 44 (permalink) Old 06-28-2005, 06:18 PM
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Sounds to me like a classic fuel pump failure, but I'm just a silly Ford tech so whadda I know.
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post #8 of 44 (permalink) Old 06-28-2005, 07:07 PM Thread Starter
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Could be, But it's been failing for 4 years than, seems like it would finally go bad. But it does sound like the tank seam welds teck tip from Ford. I had a couple of TFI modules go bad and they acted same at time of failure. If changing IRCM(Integrated Relay Control Module) which contains Computer power relay and fuel pump relay doesn't fix it fuel pump and strainer may be next... Once when it wouldn't start fuel was still under pressure at valve in fuel rail and no spark could be seen. I'm going to put on a fuel pressure guage and try to get it hot to see if pressure drops. thanks... if it never got above 85* it would never fail...When I repaired business machines I would order a big box of parts and replace em'all, that fixed most of them if not I ordered another big box of parts...

2002 Taurus Sel Wagon 3.0 (24V)
1999 Ford F-250LD 5.4 4X4
2014 F-150 5.0
1989 Bronco Full Size 5.0
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post #9 of 44 (permalink) Old 06-28-2005, 07:43 PM
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It gets over 90 here most of the summer and spring, sometimes in the fall as well, so I see it all the time, trick to catching it is with a fuel pressure gauge when it fails, and you will be surprised how fast it drops off.

Yur gonna hafta hook it up and run the line thru the hood to the windshield where you can watch it actually happen, or else you won't see it happen.

Had a couple of them suckers fool me for months till I did that.
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post #10 of 44 (permalink) Old 06-28-2005, 07:46 PM
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EXACT same problem on my 1996 Vulcan. Stalls in hot weather general while idling or at LOW driving speeds. Doesnt sputter to a halt...just bascially stalls. Idle may drop real low and loopy just a few seconds before. Only on the hottest days. Has done this for 3 years now. Other than that. Runs PERFECT. No leaks/squeaks/creaks.

ANy ideas?
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