Question about 1988 Dodge Ram Wagon
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Posted on Jan 02, 2017
the fuel pressure regulator vacuum hose usually runs to the upper air intake somewhere, check for the fitting on the upper air intake or throttlebody.
Posted on Feb 21, 2009
I doubt the regulator is bad, the fuel pressure regulator is after the injectors in the return stream to the tank, more likely it is the fuel pump.
Posted on Mar 10, 2009
SOURCE: fuel pressure regulator
Have you checked the fuel pressure? If it is high and fuel is not returning, the regulator is bad. If it is low and fuel is not returning, the pump is bad.
Posted on Mar 11, 2009
As far as I know without checking it personally it sounds like it could be one of three things (in order from easiest to hardest). Clogged air filter, worn timing chain, leaking head gasket. To check for the third go to Auto Zone and get them to do a compression check, its free. I can't remember off hand but if the 93 has a TPS (throttle position sensor) that could also cause an irratic idle.
Posted on Mar 18, 2009
another engineers wet dream. think of it this way . what is normally in the intake when the engine is running.. answer vacume, hence the regulator gets its vacume without a hose connected to it as its already in a full time vacume chamber.no hose required . ps be carefull to seat the regulator and o rings securely into the housing befor you reattach the secureing metal clip.
good luck chris
Posted on Mar 23, 2009
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