Join Date: Aug 2005
Location: Bel Air, MD
Feedback Score: 0 reviews
re: 6.9L IDI diesel , what are the pros and cons of this engine
That "mechanic's) opinion is worth exactly what you paid for it.....absolutely nothing. It might be interesting to hear his rationale, maybe he herard of someone who had a problem, maybe he priced paerts and saw they cosy more than a small block chevy. Who knows how he arrived at that opinion.
The factory HP ratings on these engines are lower than some people expect today, but they are nearly bullet-proof. I did a rebuild a couple of years ago at about 320,000 miles. When I pulled the pistons, I could still see cross hatch in the lower half of the cylinders, and the taper was not measureable. These are heavy duty, well-built engines. Replacement parts cost a bit more, but Mercedes parts cost more than Geo parts.
The power issue can be dealt with by adding a turbo. I am looking to install one, myself. The many people who have installed turbos are almost universal in their, " Why did I wait so long to do this?" response.
Problem areas are discussed above. Also remember, as you read thru the posts here, it may seem that a lot of people have problems with their trucks. Well, duh! Thats why people post here-to get information.
Change the oil often, keep the filters clean, use a fuel additive, and monitot the SCA level in the coolant, and they'll last for a long time. And don't forget, you've already found the best resource for maintaining, and if necessary, repairing your new 6.9 diesel-the dieselstop.com.