ive got a 56 galaxy tdci...... its turning over fast but takes ages to start there was a lot of air in deisel so changed the fuel filter housing top part put 2 glow plugs in.. the middle 2 as the other 2 are ridicoulys hard ive a temp control sensor to put on as it might be that was told ive also been told to clean egr valve could be carboned up also been told could be crankshaft sensor been told it might be valve on top of tank anybody had same problem???????????