I have a 2000 Grand Cherokee with a 2.7 L Mercedes Diesel engine.
This morning I had severe starting difficulty and had to give up to try again later in the day. Each time I tried to start it would immediately fire, run for a second and stop. I waited for the glowplug indicator to go out each time and once I tried turning the key three times to heat up the glow plugs as much as possible before turning the engine over but to no avail.
It was a cold morning but I didn't think it was drastically cold overnight - perhaps -6 degC. When I was trying to start it at 07:30 it was -2 degC. hence I didn't think the diesel was gelling but I could be wrong. I filled it up previously at Tesco's but reading the forums I got the impression that Tesco's diesel being problematical is described as an urban myth but I don't know enough to comment.
It has been ratty starting even under normal circumstances.
Any ideas anyone ?