Glow plug light not coming on dash board and drives like semi~ automatic

1999 Peugeot 406 2.0 diesel manual
Car: Peugeot 406
Year: 1999
Variant: 2.0 diesel manual
(a)When i put on the key my car does not show that glow plug coil sign on the dash board. Cranks hard before engine roars into life, like 60 seconds or more.(b) my car drives like its on auto cruise because i can change all the gears upwards to gear number 5 without stepping the accelerator pedal.....(it has self acceleration) which comes gradually....but its a manual gear box.Please help.......
Problem added: Nov 4, 2015 (8 years ago)
Obvious answer is get your glow plugs tested,
though by the sounds of it they're all shot.
not a hard job to do with this engine.
as to the other thing first thing I need to know is cruise control fitted?
many were.
and check for free play at the throttle linkage under the bonnet.
Answered Nov 4, 2015 (8 years ago)
(a)Plugs tested, all in working order.(b)Do manual cars sometimes have auto cruise fitted on them? (c) Where exactly is the throttle valve linkage?
Answered Nov 5, 2015 (8 years ago)
Have you had a look at this similar problem:

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Answered Jul 21, 2017 (6 years ago)

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