Golf Starting Problem
Discussion
Hey guys,
I'm having trouble with my MkIV Golf 1.8 20v (the non-turbo version unfortunately!). I wonder if anyone can help?
When I turn the key in the ignition the starter just turns over and the engine won't catch. I have to rev it to get it going, and once started, the car runs fine with no mis-fires or rough running, although there is a strong smell of petrol to begin with. If I was to start it this way, run it for a second or two and then switch it off, it would start again immediately with no problem. Leave it for a while and it won't start again. It also starts from hot first time, every time.
I have had the starter motor replaced as it was on its way out anyway, and a full service done with the plugs changed etc, but no difference. I have also had a temperature sensor in the engine changed which has not cured the problem, and the throttle body cleaned. This improved matters for a day or so, but it is back to its old ways again. I've had some diagnostics run on the car but there are no faults shown on the ECU. I guess the only other thing to note is that since the temperature sensor was changed, the car only heats up properly when sitting idling in traffic - otherwise, no matter at what speed or over what distance, it runs cold.
Anyone who can help me out with this is going to save my sanity at this rate!
Thanks in advance people!
I'm having trouble with my MkIV Golf 1.8 20v (the non-turbo version unfortunately!). I wonder if anyone can help?
When I turn the key in the ignition the starter just turns over and the engine won't catch. I have to rev it to get it going, and once started, the car runs fine with no mis-fires or rough running, although there is a strong smell of petrol to begin with. If I was to start it this way, run it for a second or two and then switch it off, it would start again immediately with no problem. Leave it for a while and it won't start again. It also starts from hot first time, every time.
I have had the starter motor replaced as it was on its way out anyway, and a full service done with the plugs changed etc, but no difference. I have also had a temperature sensor in the engine changed which has not cured the problem, and the throttle body cleaned. This improved matters for a day or so, but it is back to its old ways again. I've had some diagnostics run on the car but there are no faults shown on the ECU. I guess the only other thing to note is that since the temperature sensor was changed, the car only heats up properly when sitting idling in traffic - otherwise, no matter at what speed or over what distance, it runs cold.
Anyone who can help me out with this is going to save my sanity at this rate!
Thanks in advance people!
if you have to crank it for ages whilst it is cold but it starts fine every other time or once the car has run once and been switched off and back on then id say you should look at the fuel system.
It sounds like the accumilator isnt working and you are losing fuel pressure whilst the car is stationnary hence it takes a while to build the pressure back up and start the engine. That or sometimes the 5injector sensor fails and instead of being a short burst of fuel it fuels continuously which drowns the engine hence the strong smell of fuel.
dave
It sounds like the accumilator isnt working and you are losing fuel pressure whilst the car is stationnary hence it takes a while to build the pressure back up and start the engine. That or sometimes the 5injector sensor fails and instead of being a short burst of fuel it fuels continuously which drowns the engine hence the strong smell of fuel.
dave
I have a similar problem with my S3 (same engine 20V, 1.8 but is Turbo).
I founf that last month when starting the engine from cold it would cough and shudder and I'd have to rev it hard. As soon as I'd revved, it was fine and would idle OK.
Due to logistical issues I had to put in a tank of BP Super Unleaded instead of the higher rated Shell V-Power. Strangely enough, this seems to have cured it!
Will keep you posted...
I founf that last month when starting the engine from cold it would cough and shudder and I'd have to rev it hard. As soon as I'd revved, it was fine and would idle OK.
Due to logistical issues I had to put in a tank of BP Super Unleaded instead of the higher rated Shell V-Power. Strangely enough, this seems to have cured it!
Will keep you posted...
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