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Dodge Repair/1997 Ram 1500 5.9ltr slt won't start when engine is hot

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Question
I have a 1997 Ram 1500 5.9ltr SLT 4x4. It starts and runs fine from cold, but if you try to restart it when the engine is hot it will not start. You have to wait till it has cooled down again. I just replaced the crank shaft position sensor, but that didn't fix the issue. Any ideas?

Answer
Hi Rif,
Try to get a fault code readout using the self-diagnostic capability. Turn the ignition switch: "on-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. Then watch the "check engine" which remains "on" to see whether it begins to flash, pause, flash, etc. If so count the number of flashes before each pause. Then repeat the process to be sure of an accurate set of flash counts. If that doesn't happen at all then instead watch to odometer window in the speedo cluster to see if the mileage is replaced by a 4-digit number preceded by P. Let me know that instead.
'97 was the transition year for OBD-I to OBD-2 so the exact way the codes will readout is uncertain. But one way or the other if there is a fault code you'll learn what it is.
Roland

Dodge Repair

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Roland Finston

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Get a Free Fast answer to your repair question about a Chrysler/Dodge/Plymouth car, minivan, SUV, or truck. Problems with electronically controlled engines and transmissions as well as body wiring problems are my specialty. This free troubleshoot advice forum helps you diagnose faults, minimize repair costs or do-it-yourself.

I answer questions seven days a week and respond to you in about 30 minutes. "Maxed Out" means I am answering another question or asleep overnight so try again later.

I have do-it-yourself experience (50+ years) and a library of 100 1982-2012 Chrysler factory shop manuals and 20 multi-manual Chrysler Corp. CD's.

I was voted "Top expert" from 2010-2015 here at AllExperts, and have answered 20,000+ questions.

Experience

Five decades as a 'do-it-yourselfer' on domestic and imported cars

Organizations
Yahoo Autos Group called The Chrysler Lebaron Club (co-moderator)

Education/Credentials
Degrees in Physics/bruised knuckles.

Awards and Honors
"Top expert" of 2010, 2011, 2012, 2013, 2014, and 2015 here at Allexperts. Quickest "average response time" at Allexperts (currently no. 1).

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