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93 240 volvo. Floods out runs rough and dies. 200 1993

posted by  riverbend on  Wed Jan 25 07:09 CST 2017
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last visit: Wed Oct 22 15:29 CST 2014
[RELATED]

If the dampness in the vacuum line to the fuel pressure regulator vacuum line smells like fuel, you need a new fuel pressure regulator.

How cold was it ? Below 0°F ? It is possible temperature sender for the engine (not the gauge, there are two)is going out of spec at low temps although that should set a code. The sensor is located under the #3 intake runner. At 14°F it should read 8200-10500Ω. At 68°F it should be 2200-2700Ω. 176° 290-364Ω.

When it is cold again try the following starting procedure -
Crank it until it pops once.
Press the accelerator to the floor and hold it.
Crank it until it fires and runs (but not so long you burn up the starter or kill the battery).
Ones it starts to run on its own ease off the throttle (the cold oil is not going anywhere too fast) so it runs at about the normal fast idle speed until it smooths out.

Greg





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