Question about 1989 Ford Crown Victoria
89 merc 5.0 has a hesitation (dead spot) problem. I did a complete tune-up. Garage checked it, TPS and IAC are OK. They got a code 34 and 40 EGR, EVP error codes from computer.
What is the least expensive route to get this car running like it should again?
What happens when you unplug and cap the vacuum line at the EGR valve? Does the problem go away? Before doing this does the car idle rough? If so perhaps the EGR is stuck open...
Posted on Sep 16, 2008
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Posted on Jan 02, 2017
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