18 years ago I built a YKC Roadster using all the running gear from Sierra 2.0 DOHC efi GLS. It has behaved superbly in all that time until this year. I was coming back from the annual kt car meet at Stoneleigh and after about 30 miles the engine started to miss a beat, then more and more until finally I was forced to stop and pull off the road. If I tried to restart the engine it would splutter, cough, so no go. I had a colleague with me and we decided it was probably a heat thing. Putting a 2.0 engine in the Marlin bay is always going to be a problem so we fit as
large a radiator as possible, we have to lose one of the the 2 main fans, fit override switches and fit heat shields to attempt to eliminate the over heating problem. Now remember it has been running for 18 years without a hitch, including trips to Spain, Sweden and France (plenty more heat and mountain climbing).
So here is the story so far. By sitting patiently at the side of the road for 20 mins. it cooled sufficiently to start and behave as it should for another 10 miles when the symptoms started again and we spluttered to a halt . We repeated the process for another 50 miles - each time the distance we could travel was reducing. The first thing I did was to replace the thermostat but that made no difference and now we re down to about 6 miles from cold before it would decide to splutter to a halt. I replaced the coil and put a different heat shield round it. No joy! The ignition control module was next and then on to the idle control valve. Still no joy and now we are down to about 3 miles.
Has anyone had a similar problem and how did they resolve it?
large a radiator as possible, we have to lose one of the the 2 main fans, fit override switches and fit heat shields to attempt to eliminate the over heating problem. Now remember it has been running for 18 years without a hitch, including trips to Spain, Sweden and France (plenty more heat and mountain climbing).
So here is the story so far. By sitting patiently at the side of the road for 20 mins. it cooled sufficiently to start and behave as it should for another 10 miles when the symptoms started again and we spluttered to a halt . We repeated the process for another 50 miles - each time the distance we could travel was reducing. The first thing I did was to replace the thermostat but that made no difference and now we re down to about 6 miles from cold before it would decide to splutter to a halt. I replaced the coil and put a different heat shield round it. No joy! The ignition control module was next and then on to the idle control valve. Still no joy and now we are down to about 3 miles.
Has anyone had a similar problem and how did they resolve it?
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