Hi all,
I've been having some trouble with my fourtrak lately and was hoping I could get some advice on it. I'll try to make this as concise as possible.
I bought a 2.8L td fourtrak about 8 months ago and after getting the radiator recored I've had no trouble with it until 4 weeks ago driving home from work the coolant temp guage was acting erratic. The needle would suddenly shoot up to the top end of the dial under minor acceleration and would quickly drop again once I let off the accelerator.
My mechanic did some tests and decided it wasn't the head gasket so replaced the water pump and temperature sensor, did a full coolant clean and flush, only to find the overheating issue got worse. I removed the thermostat to see if that helped and apart from taking longer to get up to temp and cooling down faster it seemed to be ok.
I installed a new thermostat thinking that would sort it, only to find it was overheating worse than ever, sat at idle in 1st gear the dial showed it was overheating however the water in the radiator was only slightly warm when I felt it. I checked the whole coolant system to the best of my ability and everything seems to be in order, (clean radiator, clean hoses, clean coolant, working temperature sensor and fan). I also checked for head gasket symptoms but no white smoke or milky oil.
I'm currently driving it without a thermostat as its the only way I can get around but I noticed today the issue is obviously getting worse as its starting to overheat again when driving at 60+mph.
Has anyone else had any similar experiences or have any idea what could be causing it to do this?
I'd really appreciate any suggestions on what I could do as I'm currently at a bit of a loss.
Many thanks,
Fred