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Posted 3 years ago

Question: Do I need to include my engine serial # in Ask Dave questions and when I go to the...

 Ask Dave / 816 views

Posted 3 years ago

Question: Why Do HEUI equipped engines sometimes start hard or seem to lose power? Dave's Answer:The HEUI injection system has...

 Ask Dave / 5560 views

Posted 3 years ago

Question: I have a 1996 Beaver Patriot Cat 3126. It has a Winn Coleman fuel system. The glass bowl is...

 Ask Dave / 916 views

Posted 3 years ago

Question: What can cause hard starting on an Onan 7.5 KW generator? Could it be the Glow Plug? Dave's Answer:...

 Ask Dave / 684 views

Posted 3 years ago

Question: is there a Class Action suit against CAT that was settled? If so what engines are involved? Dave's Answer:...

 Ask Dave / 917 views

Posted 3 years ago

Both the Magnum chassis and the Monaco Roadmaster chassis with a multiplexed electrical system have a headlight circuit wiring design...

 Common Problems / 1034 views

Posted 3 years ago

Question: What does CAT recommend regarding filter usage and care for their engines? Editor's Note: Our coaches, just like most...

 Ask Dave / 812 views

Posted 3 years ago

Question: I have a 2007 Patriot Thunder with the C13, S# KCB89161. I had a check engine light come on...

 Ask Dave / 1618 views

Posted 3 years ago

CAT Fuel Priming Pump Installation (Parts List is at end of this document)  The following is based on my experience...

 Common Problems / 1768 views

Posted 3 years ago

Slides will tend to sag over time. Most often this occurs on SMC & Magnum era Beavers. Paint border misalignment...

 Common Problems / 1193 views

Posted 3 years ago

The answer of which system to use is;   ”It Depends…” (Note, the following information is taken from BAC Forum Technical...

 Common Problems / 1982 views

Posted 3 years ago

Dave, How important is it to get an oil sample done when changing oil? Dave's Answer: Oil samples are important...

 Ask Dave / 739 views

Posted 3 years ago

This is an old post on the Forum. We have had drains in our awnings for about 8 years now...

 Common Problems / 569 views

Posted 3 years ago

Absorption or Residential Refrigerator for my RV? If your factory supplied absorption refrigerator fails, you have a couple of options...

 Common Problems / 754 views

Posted 3 years ago

Question: Dave, I keep hearing about turbocharger problems on the 425HP C9 engine. Can you provide some information on this?...

 Ask Dave / 728 views

Posted 2 years ago

Dave, Why is inlet air to engine so important for optimal engine performance? Dave's Answer: A Cat engine requires unrestricted...

 Ask Dave / 579 views

Posted 2 years ago

Question: Dave, How does the Caterpillar Regen System Work on C9, C13, & C15 Engines   Dave's Answer: The Diesel...

 Ask Dave / 821 views

Posted 2 years ago

Dave, I bought an 08 Contessa in Dec. with a CAT C9. It had 4977 miles on it.  Had a...

 Ask Dave / 696 views

Posted 2 years ago

Question: What would cause an inconsistent rough or surging idle for a C9 400hp engine in our 07 Contessa? I...

 Ask Dave / 852 views

Posted 2 years ago

Dave, I have a 06 Beaver Patriot Thunder with the C13. It has a Racor 125gal/hr primary fuel filter and...

 Ask Dave / 644 views

Posted 2 years ago

Question: Water temperature gauge is not showing any temperature reading on my 2001 Patriot with a 3126B Engine. The needle...

 Ask Dave / 441 views

Posted 2 years ago

Dave, Why is it difficult for the C9 to maintain proper fuel flow and pressure with the original pump that...

 Ask Dave / 635 views

Posted 2 years ago

Question: Read on another forum that, according to a long-haul trucker, he would avoid using his Jake brake when over...

 Ask Dave / 708 views

Posted 2 years ago

Dave, The fan on my C12 is not coming at all, the receiver tank is (full) brand new steel tank...

 Ask Dave / 495 views

Posted 2 years ago

Question: Dave, Should I be using additives for fuel, oil or fuel?   Answer: Neither CAT nor Cummins recommend additives....

 Ask Dave / 513 views