About 55,000 miles. 5.9 liter engine.>

I have started having problems recently. Sometimes, it would crank,>but would not start. Then, sometimes, if I "reboot" it by>disconnecting battery for a minute, then it starts. Also, recently>I put it in reverse, then in forward again, and the engine stalled.>

This morning I could not start it altogether, although I had>relatively little time.>

I own a code reader and a repair manual and would like to try to>figure it out myself.>

What would be a sensible problem solving approach here?>

What would be a sensible problem solving approach here?

Step one - have the battery load-tested, or swap with a known-good battery. > Alternatively, hold a DVM on the battery while attempting to start. If he > voltage drops much below 11.5V (ie. into the 10's), you need a new battery.

The battery is one month old and cranks very well. I could load test> it, etc, but I pretty much know the likely result.

Okay - that's just the first usual suspect. Next is the fuel supply. Do > you have, or can borrow, a fuel pressure gauge? Check the pressure in the > rail before cranking (test port should be in the middle of the driver's side > fuel rail). It should be at least 20psi or so with the ignition off. Have > someone turn the ignition switch on, and see if the pressure jumps up to > 45psi or so immediately.

If you have no pressure at first, you could have a leak in the fuel pump > module, or a leaking injector. If there's some pressure there, but it's > slow to come up, or doesn't come up to 45psi (or better), then you've got a > weak fuel pump (or a partially clogged fuel line - more likely a pump > issue).

I will check coolant availability tomorrow. Maybe I am running out of> coolant. It is too late right now.

Coolant??

"Tom Lawrence" <tNlOaSwPrAeMnMcIeN­5G@earthlink.net> wrote in message > news:HrFbe.15540$go­4.8742@newsread2.new­s.atl.earthlink.net.­..>>> I will check coolant availability tomorrow. Maybe I am running out of>>> coolant. It is too late right now.>>

Hmmmm.... y'all were on a roll 'til he mentioned coolant... he lost me there > too Tom.

I mean antifreeze. ­

Yeah - we got that part. I think Mike and I are both a little confused as > to what this would have to do with a no-start/hard-start­ condition.

I see. My hypothesis is that the engine senses lack of antifreeze and> refuses to start if it remembers that it did not have enough> antifreeze. A reboot would correct that. Just a wild guess.>

I will try to pay close attention to my truck. Soon, maybe tonight or> tomorrow, I will attempt reading codes with code reader.>

Another bit of information is that lately, a parking brake light is> on, even though the parking brake is disengaged, and also, the ABS> light is on.>

i

Thanks. I will try to change my drum brakes this weekend.