Question about 1998 Ford Ranger
Posted by Anonymous on
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Posted on Jan 02, 2017
I have a 2000 F250 with Powerstroke and my buddy has a 02 with same engine. Both of us have had the same problem. There are two coils (look like starter coils) on top of the engine that can be seen from the passenger side of the truck. The shorter of the two, has to do with supplying voltage to the glow plugs. When this coil gets older, it breaks down causing a higher resistance in the circuit. Which reduces the volts that the glow plugs see. In turn resembles a problem with the plugs. My buddy and I changed the coils and both trucks start like new. The part cost $80-$90. and can be changed in less than 5 minutes. Glow plugs are a lot bigger job and more expensive.
Posted on Dec 02, 2008
It sounds like your preheat system is not working properly on the cold startup. Haynes has a Diesel Engine Repair Manual, part #10330 that will help you correctly diagnose and repair.
Battery volts at 13 is good but a fully charged battery should be close to 14.2. It would be a good idea to get the alternator output checked and a load test done on the batteries.
Hope this helps.
Posted on Jul 12, 2010
Check for vacuum leaks. this is the main cause for lean codes. Definitely not the coolant sensor. Let me know there are other things also.
Posted on Feb 14, 2011
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