Getting P0153 and P0174
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Junior Member
Joined: Aug 2009
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Getting P0153 and P0174
98, 4.6L 2WD
At idle the RPMs surge 300-400 RPMs or so and the fuel economy is pretty bad. Is this indicative of a vacuum leak? I don't want to blindly throw parts at it but this one has me stumped. USB cable for FORscan is in the mail so I should be able to get some data next week off the engine.
Any ideas?
Thanks
At idle the RPMs surge 300-400 RPMs or so and the fuel economy is pretty bad. Is this indicative of a vacuum leak? I don't want to blindly throw parts at it but this one has me stumped. USB cable for FORscan is in the mail so I should be able to get some data next week off the engine.
Any ideas?
Thanks
