1992 volvo 240 keeps blowing overdrive fuses

Check the wiring harness to the back of the headlamp connector. They tend to rub against the frame near the headlamp and get cut, then short out. It may be as simple as relocating the bundle and adding some electrical tape to keep it from shorting.

its either the brake light switch on the brake pedal or the servo at the shifter that is g to fail.

If the fuse is blowing out it means you have a short cirtuit.possible causes the Light socket, pedal sensor or somewhere along the wiring harness Aires might na chewed you and touching each other

connector under the truck, near the trans
cannot remember specifics at this time but remember starting there every time one cam into the dealer with tail light issues and blown fuses

new fuel filter when replaced the pump? might have a bare wire somewhere causing the fuse to blow usually the relay is under hood with main fusses and secondary being under dash or in glove box.

If fuses keep blowing, then there is a dead short somewhere,. My advice would be to go to an auto electrician. You did not mention for which circuit/s the fuses blow.

Check the transmission filter, may be clogged up, do not change the oil, keep the same oil when replacing filter, trust me to avoid transmission repair.

You can find it behind the fuse box. To access the relays. Remove the plastic cover on the cigarette lighter socket, remove the screw, and remove the ash tray to gain access to the fuses and panel whit the lighter socket. The relay is marked number 123 or 136, found all the way to the right second row.

Check your fuses,then replace the overdrive relay,if not this,they sale an bypass plate from IPB,for about 40 bucks,very easy to install.

when driving overdrive kicks in sometimes it will go off