MotorHome Tech Tips
Relocating the Cummins ISL Engine Oil Dipstick
Cummins ISL Oil Dipstick
I have found that the engine oil dipstick on the Cummins ISL needs to be relocated. The tube that houses the engine oil dipstick on some of these engines is touching the manifold and as the manifold heats up it will, in time, melt the tube causing engine oil to come out under pressure and make a huge mess all over the engine compartment and the tow car as well. We have had several reports in our club and from other clubs that this has actually happened and it was not a pretty picture. A little preventative maintenance is well worth it, therefore, if you have this engine you should check out this situation immediately and if the yellow tube that houses the engine oil dipstick is touching the manifold, it needs to be relocated and securely fastened away from the manifold, turbo or any other parts that heat up. If you see this situation, please attend to it immediately, before it's too late. If you have your service advisor look at the situation and if the dipstick housing is touching the manifold they should be able to relocate it so that it runs freely and touches nothing and can be securely fastened to the cross member or another fitting located below the transmission dipstick. It is also important that the relocation of the engine oil dipstick be done such that it is easily accessible to retrieve it from its housing to check the engine oil level. There is a vertical support strut that might be in the way and is positioned such that it might be difficult to remove the dipstick, if this isn't taken into account when the relocation process is performed.
Caution: The maintenance recommendations on this page are meant as general guidelines only. Always consult with a professional RV mechanic, your owner's manual, and/or your authorized RV dealer BEFORE performing any maintenance procedures. See 'Legal Disclaimer' below.
Legal Disclaimer & Caution: Before using any advice, and/or performing any maintenance procedures recommended on this website you should consult with your RV dealer, and/or a professional Motorhome or RV mechanic. The recommendations and advice given on this website are intended as general guidelines ONLY, and may not pertain to your particular make and/or model of RV or Motorhome. Use these suggestions, repair tips, and/or maintenance advice AT YOUR OWN RISK. Under no circumstances will this website, or any of its officers or employees be liable for any consequential, incidental, special or exemplary damages even if appraised of the likelihood of such damages occurring. The owners of this website do not warrant the information against errors, omissions or deficiencies of any kind.
Back To: RV Tech Tips