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Ford f 150 4x4 custom 4.9 running rich and hard to start after sitting all nite

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  • Cars & Trucks Master
  • 21,873 Answers

If it is fuel injected, it could be a leaking injector or a problem with the fuel pressure regulator.

Posted on Jan 12, 2013

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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emissionwiz
  • 76673 Answers

SOURCE: 1997 Ford Explorer

Ok you need to correct the mechanical issue and then deal with the codes, they are a result of the engine problem, not the cause of it.

Posted on Oct 14, 2008

mrgreenz
  • 962 Answers

SOURCE: hard start

DTC - 15 Engine coolant temp sensor error (low temp indicated)
This is an Diagnostic Trouble code using the OB1 which simply means the check engine light blinking in series at certain intervals.But my thinking says that if you are having trouble wuth any sensor , the ECU or PCU computer will read all kinds of things in error. Try replacing the TCS temperature control sensor.Only 96 and up have a OB2 Diagnostic system

Posted on Jan 08, 2009

  • 67 Answers

SOURCE: 2003 Pontiac Sunfire 4 cyl, hard start, runs great after starting

check the hose for fuel pressure regulato if is fuel on the hose replace the fuel pressure regualtor.

Posted on Apr 17, 2009

pyroshain
  • 42 Answers

SOURCE: 1986 ford ranger that is running very rich

If you have fuel in your oil, your piston rings are bad. Get a compression tester from your local auto parts store and do a compression test on each piston. If compression drops, then my theory is confirmed. The only repair is rebuilding the engine, or buying a new engine. Replacing rings is very intensive work. It's easier to simply purchase a crate motor.

Posted on Jan 02, 2010

emissionwiz
  • 76673 Answers

SOURCE: starts hard after sitting over nite

Have a fuel pump pressure leak down test run on the car.

Posted on Sep 26, 2012

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Did you check to see if you have any codes in ECM or an engine light on ? If it's been sitting for that long, might have other issues which cause this problem.

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