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2001 1.6s 16v - starting problems from cold - pdp01
Hi

I am looking for some help. I have a SEAT Leon 1.6 S 2001 with a 16v engine. I bought this car from new and had it serviced at the correct times, mileage 75K. It seems to have developed a consistent fault.

On starting from cold the engine does not want to start. What I mean is that the engine turns but fails to fire, with short twists of the key. It appears to fire but at once dies. On calling out the AA/RAC they tell me that the engine has flooded. They start the car by keeping the starter motor running until the engine fires and keeps on running. Sure enough this works. What appears to happen is that the engine fires up dies and then re-fires up in 5 seconds and then its OK.

I have had the car serviced and the fault is still there. Once the car is running I can stop and restart with ease. So a bit difficult for the mechanic to spot. To be honest this fault has been with the car since new in which it has happened three times in the last 4 years. The dealer and now my mechanic have not found the fault, but now its always happening. I have been driving for 30 years and I know something is wrong here but what.

On starting the car from cold the rev meter jumps to 2000 rpm, then drops to about 200 and then goes to about 1200 revs once warm it settles down to about 850 rpm.


Any ideas gratefully accepted

Edited by Dynamic Dave on 14/12/2007 at 18:42

2001 1.6s 16v - starting problems from cold - Screwloose

The coolant temp reading in live-data would be the first thing I'd check.
2001 1.6s 16v - starting problems from cold - pdp01
Thanks, I will get the mechanic to check this out. I read on the SEAT users site (via honest johns link) that it could be the engine temperature sensor, which would tie into your suggestion.

Today same problem on cold start, but when warm stars a treat. Going in on monday to the mechanic
2001 1.6s 16v - starting problems from cold - pdp01
More help would be good. I have had the engine coolent temp sensor replace, but still having problems, looks like my mechanic is running out of ideas. Looking like will have to send car the a dealer!!

Edited by Dynamic Dave on 18/12/2007 at 18:45

2001 1.6s 16v - starting problems from cold - Screwloose

Get a compression test done and check the spark plug condition and make when they're doing it.

This could have either HT leads or coilpacks; any idea of the engine code.
2001 1.6s 16v - starting problems from cold - pdp01
Hi, thanks for the reply the engine code is AUS103379. I will ask them to do those checks

Edited by Dynamic Dave on 18/12/2007 at 21:05

2001 1.6s 16v - starting problems from cold - Screwloose

Thanks; the AUS has HT leads and a single 4-way coil. [Glad it's not the dreaded AZD with 4 coilpacks.]

Even with a new sensor; it might also be worth checking the live-data to make sure that the ECU is seeing the correct engine temp.
2001 1.6s 16v - starting problems from cold - pdp01
Thanks, On changing the sensor they plugged in a lap top and reset everthing, I will quiz about live data. Second I had a full service done so replace spark plugs etc as a wise precaution.
2001 1.6s 16v - starting problems from cold - pdp01
Thanks for your help screwloose.

Appears problem solved by cleaning air intake and throttle assembly!!! Car now starts up in an instant (like New). However, the starter motor is now not disconnecting on start up!! so another issue to be solved. I guess it gave up to to the over use.