1998 Ford Taurus Emission

Tiny
SPEEDY369
  • MEMBER
  • 1998 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 113,200 MILES
How I repair the Secondary Air Injection System Incorrect Flow?P0411

EVAP Control System Leak Detected? P0455
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Friday, January 25th, 2008 AT 6:00 PM

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Tiny
JACK42
  • EXPERT
The AIR code- Look for broken vacuum lines to the AIR diverter valves, broken/missing belt on AIR pump, damage to the hoses from diverter valve to the "gulp" valves at the exhaust manifolds. If all good, start and warm up car, check for vacuum at control valve on diverter. If ok then might be the gulp valves, they are one way and sometimes get rusty and stuck in position. The EVAP code might require a trip to teh shop for a smoke test to find the leak, the system will detect very small leaks
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Saturday, January 26th, 2008 AT 8:05 AM
Tiny
PEPTALK4FEEZLE
  • MEMBER
How do you check the gulp valves? Where are they located? 1998 taurus SE 6.0 V6 OHV.
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Saturday, March 17th, 2012 AT 12:46 AM
Tiny
RIVERMIKERAT
  • MEMBER
There should be a tube or hose with a valve in it running to each exhaust manifold. You will see a vacuum line going to it. One on both manifolds. The valves can be tested with a vacuum gauge/source. You can apply vacuum (16 PSI or more) and you should hear the valve open and then slowly close. If you remove the hose or tube, you can see it opening and closing. If it's working properly.
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Wednesday, March 21st, 2012 AT 7:54 AM

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