95 ef 6 cyl surges under load and changes idle.need help

[walk2148]

hi all
my 95 ef 6 clinder, surges under load, changes idle speed at the lights, and generally runs like a bag of ИИИИ. the engine empties the coolant reservior every three days with no apparant leaks, and it can run quite warm/hot at times.
i have done injectors, fuel and air filters, had electrics checked, and checked for air/fuel leaks all over. i have replaced radiator and all hoses.it does not use any oil, and the oil is always clean and has no discolouring of any kind.

three mechanics including my local ford dealer have checked it and all have diagnosed different things, from stuffed head gasket, to sucking too much air (but wouldnt say where from). and the last said it was an overheating problem.
if anyone may have a good suggestion, other than burning it, i would appreciate a guess, to avoid spending more money on poor diagnosis, or replacing parts that dont need it.
regards bazz

[Walkinshaw]

Originally Posted by walk2148

hi all
my 95 ef 6 clinder, surges under load, changes idle speed at the lights, and generally runs like a bag of ИИИИ. the engine empties the coolant reservior every three days with no apparant leaks, and it can run quite warm/hot at times.
i have done injectors, fuel and air filters, had electrics checked, and checked for air/fuel leaks all over. i have replaced radiator and all hoses.it does not use any oil, and the oil is always clean and has no discolouring of any kind.

three mechanics including my local ford dealer have checked it and all have diagnosed different things, from stuffed head gasket, to sucking too much air (but wouldnt say where from). and the last said it was an overheating problem.
if anyone may have a good suggestion, other than burning it, i would appreciate a guess, to avoid spending more money on poor diagnosis, or replacing parts that dont need it.
regards bazz

Head gasket. fix it now.

[Barry_v]

put a coke bottle on the overflow hose, just to make sure your coolant isnt getting spat out the radiator cap. 99% chance its the head gasket though.

[BOOSTDEF]

definately a head gasket if its the stock one... Sounds like water is entering your cylinders and is going straight out the exhaust.

Mine was eroded in every possible place and the water port holes on the gasket where about 2mm away from the cylendar on all 6.

If you want to be sure do a compression test.

[walk2148]

thanks for the input, i think i knew it, just did not want to face it....

[walk2148]

definately was a head gasket and welsh plug..all fixed now....can sit and have a drink or ten and get over my war wounds..thanks to those of you who replied

[BOOSTDEF]

haha you fix it yourself?? Was gregories a great help, or did you get it done elsewhere?

Good to see you back on the road

[walk2148]

yes did it myself, a peace of cake...also found timing chain tensioner was broken...thanks for you input, yoyu where spot on

[2kool4u]

Sorry to be such a dumbass,...but,..

what is surging??