I guess its time-
Well my beloved 2011 GMC had the high pressure fuel pump grenade sending metal into the injectors... A very expensive repair for a truck with 110k miles on it. I had really wanted to wait another y...
Forum Discussion
3oaks wrote:N-Trouble wrote:If that is the typical case, it may be wise and more cost effective for owners to just replace the fuel pump at between 90k and 100k miles.
Not really all that unusual. Lots of discussion about grenading CP4 on the Dmax forum. Sucks you were only 10K mi beyond warranty but I seem to hear a lot of them taking a dump right around the 110K mi mark. I generally keep my trucks a long time but my 2012 Dmax will be sold before I hit 100K mi because of these stories. Wont buy another CP4 truck that is for sure.
Lots of guys are putting CP3 comversions on their LML Dmax. It's a bit pricey though. Also requires tuning.
First few years probably in that order have had more CP4 failures reported but they've also go more mileage. Reports on newer '15 trucks "feels" low but it's still early. The pump on the '15 looks physically different and had an obvious re-design.
