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<p>[QUOTE=&quot;Flying Monkey, post: 12230334, member: 339334&quot;]I need a little help please. First time owning a Cummins. Love it, great power, great sound, horrible mileage,&nbsp; everything we love.</p><p>My issue, a couple weeks ago I notice a very slight hesitation while accelerating, like a hiccup. Nothing bad at all. </p><p>Tonight, coughing and farting at the same time. Not really, its almost like the fuel is being shut off and on, constantly. </p><p>Nursed it to a safe place to park.</p><p>While accelerating,&nbsp; as the rpm&#039;s go up the hesitation interval is greater, low rpm&#039;s it&#039;s fine and idle is perfect. I can throttle up just fine when engine is not under a load. To try and maintain a constant speed, anything above 35 mph, the on/off situation would be about 1.5 seconds of fuel being supplied followed by about 3 seconds off. Thankfully a light load. </p><p>Oil pressure is normal,&nbsp; 40psi 20 at idle. Last PM was 3273 miles ago.</p><p>150,000 miles on rebuild.</p><p>Prior to a couple weeks ago, no issues at all.</p><p>PLEASE HELP</p><p>1989 Peterbilt 379 NTC 855 Big Cam 4, 444.[/QUOTE]</p><p><br /></p>

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