I had similar behavior on my '96 Dodge Dakota a couple years ago when the sender went bad. It'll make your heart jump right up into your throat! On mine if I accelerated very slowly and didn't go over about 60mph it was okay as long as the AC was off. After a long 150 drive back from Maine sweltering in midday July heat I fixed it quick...
-Curt '83 240D "Hammie" 241kmi Message: 7 Date: Tue, 28 Jun 2005 18:18:19 -0600 From: "Dave M." <[EMAIL PROTECTED]> Subject: Re: [MBZ] OM603 oil pressure question To: [EMAIL PROTECTED] Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1; format="flowed" Marshall, Joe, et al: Thanks for the quick replies. I figured the sending unit would be the place to attach a manual gauge, but I thought there would be a procedure in the FSM with more specs than the awfully vague TDM numbers. If my car would barely hit 3 bar by 3k, I'd say the motor would be junk in short order. My car idles at 1.75-2.0 hot and pegs almost anywhere off idle. Symptoms were 0.5 bar indicated at idle, then increasing to 3bar as you drove off, but then dropping to zero! My BIL had it checked out today, and got lucky. First it was just a bad sending unit (whew!) and second the local parts place (dealer?) had a new one on the shelf. It's already fixed and back on the road! I was surprised myself at the quick TAT, since he just called me this AM asking how to diagnose it. I was about to have them pull the filter and check the stuff Marshall mentioned. This car gets M-1 or D-1, btw. :-) Thanks again, Dave M. --------------------------------- Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your mobile phone.