Thread: Puma engine Problems

Thats a corker...

water in the fuel can cause the injectors to stick open.

I know that older mechanical injected diesels can be made to run backwards if you pooch a stall start (I occasionally demo it unintentionally with the unimog while doing stall recoveries) but I was as sure as shooting that you couldnt do it to a modern electronic diesel Plus you have to turn the engine over backwards during startup to get it to run backwards, how the hell did they manage to get it to do that without destroying the statermotor and ring gear?

Of all the things that trouble me about modern electronically controlled engines your problem encapsulates them all, they may be more fuel efficient and have reduced exhaust emissions, but for vehicle that by their very nature are supposed to be on roads less travelled, its not a good omen.

I'll be very interested to know the outcome of your problem.

sounds like a ecu fault,, or the turbo harniss, all so, if the brake light fuse blows it will make the engine feel like its running on and the go realy ruff untill restarted,

Could they have run the starter motor backwards?

Originally Posted by Dieseldog

Been a loyal landie nut for 22 years, 8 different L/R vehicles. Bought first new landie this year (130 puma ute) did 11,300 km and cut out while driving along the road and refused to start. Cranks over but won't fire. Returned to dealer on back of truck. 3 weeks later and they still have no idea what is wrong.Landrover aus. refuses to lend me another vehicle until they know what the problem is.Dealer managed to get vehicle to start after 5 days, but informed me that the engine was running backwards!! (smoke coming out of air intake) Then they told me no.1 injector was stuck open, filling the cylinder with diesel. This is obviously a problem they have introduced, because if the injector was stuck open before, the engine would have at least coughed or attempted to fire while cranking over.Anyone had similar problems, or any ideas as I don't think the dealer has a clue. I am tearing my hair out, and just want my money back so I can buy another vehicle and get on with my life.Almost a month since it broke down now. Is this what they call the "landrover Experience" ?

I would suggest you go to print - write a letter to Land Rover Australia (send it registered express) Explain your situation, including your vehicle loyalty. Make sure you demand a courtesy or hire car. Send a CC to the dealer.

I would say you are being messed around by a local dealer who are out of their depth.

Follow it up with a phone call after a couple of days.

Erich

Originally Posted by frantic

Could they have run the starter motor backwards?

no. that was part of the point I was trying to make.

if the injector is stuck open,,
wont the cylinder eventually hydraulic?

on a td5 yes, from memory the rail pump for the puma is crank driven so once the crank stops so does the fuel flow. I doubt that enough would transfer in from the rail into the cylinder to fill it to capacity and the cranking effort would be low enough that it shouldnt bend anything if the engine came to a stop. once it was over TDC once it should expel enough fuel (past the rings or out the exhuast) that the next turn at compression would have enough room for normal compression BUT.

when the engine is turning on the starter there is no oil pressure so all the effort of locking the crank up against the fuel means the big end bearing is copping some pretty harsh treatment.

If I found out that my engine had been cranked over against a potentially hydraulic-ed cylinder or had actually started and run backwards (though I still dont think thats actually the case) Then Id be demanding a reco of the bottom end or a new engine.