Volvo D13 long crank when warm + coolant tank building pressure. Injector cups?

esam · Jun 7, 2026 19:15

Hey everyone, running a 2018 Volvo VNL with a D13. Lately, it's been taking a long time to crank and start, especially after sitting for a bit when warm. I also noticed the coolant expansion tank is building a lot of pressure, and the coolant looks a bit darker than usual.

Does this sound like failed copper injector sleeves leaking combustion gas into the fuel/coolant lines? For anyone who has done this job recently, did you go back with copper or switch to the stainless steel cups? Thanks!

Comments (6)

esam

Please if anyone can help with this issue

john

You may have couple issues there my friend, long cranks is usually because of injector cups leaking. If you have a fuel pump, before starting truck, pump it a few times. Your truck should start right away. I am not sure about the other issue you have

esam

let me try it, thanks for prompt reply, have you faced this issue before

john
anytime

jojo

hey, I have a similar truck. please let me know what you find out.

jojo

I will ask around

esam

thanks, this fixed the issue great community