I may go back and look a little closer and do the blow by test also? Don't you just take the oil cap loose while idling and leave it laying in place and see if the cap blows off?

I just looked at the car fax service records which are just dealer service records I believe. It doesn't show any injector replacement records.

According to carfax it's had 4 owners, the last guy bought it only 8,000 miles ago. Wonder what scared him off?

Let me ask, you 5.9'guys another question. I noticed when I started the truck the oil pressure was on 40 and didn't move. After 15-20 minutes of running down the highway, I notice the oil pressure would drop to about 20 when at a stop sign or at speeds below 30 mph. Is this normal? It would come back up to 40 when back up to cruising speed of 50 mph or so.

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