Thanx for all the good advice. I will try cleaning the idle controll valve out. its the original from 1988. the fuel pump relay shows a date of 1994 so its been replaced and it looks good internally. also I plan on checking the amp draw on the pump at pins 7-8 see if its higher then 8 amps then I know the pump is frying the relay when it gets hot. see ya john

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88 W124 3.0
96 R129 119eng
06 ML350
98 ML320 sold
02 CLK55 amg