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3cx wont run right?

my 1989 3cx keeps dying while running ,it runs ok for a few minutes then revs go up & down on ther own then it stops.any ideas
mick jones, August 2009
First, have you a clean diesel filter? Dont forget to clean out the water trap filter bowl inside the left chassis leg, below where the loader lift ram is connected. If all is good and problem remains, try a good dose of " diesel fuel injector cleaner". If this cures the problem, even for a few hours, then you need to take the injector pump off and have it overhauled. Its a pig of a job as you have to remove the geardriven water pump, and thats quite tight to the radiator cowl, so you will have to slacken off the 4 bolts holding the rad in place to move it forward. prop up the loader arms SECURELY. If they creep down before the pump gets back to you, it dosent make the job any easier!

Nigel in Cavan, August 2009
link Click here to see other fixes for 3CX.