Fast Turning But Not Starting For A While

[marinabrid]

hi all

any clues on this one, 98 s reg tdi 110

 

came to work, stopped at shop, got in , enigine was normal temp, starter spun engine over fast but didnt start, then there was a warning buzzer noise after, i tried again and after about 20 seconds of cranking it fired up, i thought the buzzer was a sign of the battery getting low , but it cranked it over fast.

thanks

[Beyond Help?]

Does it start OK now? It could have been a few things, like air in the fuel line to the pump, fuel vapourising in the line (unlikley but it can happen) etc.

[marinabrid]

yes oddly i went out to it 10 mins after geting to work and it startd fine, last year we had a similar problem with it, from hot or cold if you stopped the engine and tried to restart it within 5 mins , it would crank and crank and crank then fire up with a bellow of exhaust fumes. seems to have been ok till this morning

on our older 90hp r reg the same thing happens now and again, its as though it runs out of fuel for about 20 seconds after stopping , then it refires, what is the warning buzzer though, i thought it was a flat battery warning, but they seem to crank over very fast.

[Stevoo]

can be two things, fuel pump relay(common fault) or immob chip in key

mine was both and now working.

The relay solder tends to crack from heat, so i replaced mine, also the immob chip in key can come lose and not sync with car.

[Beyond Help?]

With early TDis when you start the car with no chip in the key the engine starts fine, it is when you release the key the immo1 cuts the engine.