Thanks guys,

The car runs perfect with the A/C off. When the car runs badly with the A/C on I can pull over turn off the ignition and restart the car the A/C does not engage and the car runs perfect again. I can let it sit for a minute and restart with the A/C on it will run fine.



I replaced the Idle Control valve and the hoses for it. Looked at the fuses on the OVP Relay.

I have a '90 300e that is running perfect, it uses the same OVP Relay as the 260E does, tomorrow I plan to take the OVP out of the 300 and install it in the 260 and see if that's the clupret.

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88 260E 92K
90 300E 143K
97 Suburban 2500 154K
98 Chevy 3500 155K
65 John Deere 3020 ?