Top 20 1991 Volvo 240 Questions & Answers

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I would try cleaning the Electronic Idle Air Control Valve with a trusted Electrical Cleaner then a Non-Conductive Lubricant.

The automatic transmission fitted on these models could be the AW-70, AW-70L or AW-72. The three transmissions are very similar. They are conventional in design though they are clutch-type (no brake bands) and very sturdy. The automatic transmission is a complex unit, but if not abused, is reliable and long-lasting. Troubleshooting these units is fairly complex, so the home mechanic should be concerned with one thing to start: oil level and condition. Begin by having the idle line pressure tested when warm (it tends to drop as the oil warms up). If the level is low, ensure no leaks are present and top it off as needed (do not overfill - fill when the transmission is hot - if overfilled, this can damage the transmission as well as cause hot oil to be ejected from the fill hole) and test drive it again. Ensure to follow procedures when topping up automatic transmission oil, and ensure it is of the correct type. If the oil level is OK and line pressure is not then replacement of the oil and screen along with cleaning of the magnets should be done. The magnets are there to trap metal contaminants before they can damage the transmission. The oil should be flushed out, filter changed and magnets cleaned at least every 80,000 miles. Have this done first to see if the problem goes away. If it persists, then the clutch pack for that gear or the valve body is suspect. If the oil is new and proper drain and flush procedures have been followed, it's possible that the check ball in the valve body is sticking once warm. What I have done with these is drop out that valve body and clean it thoroughly, provided scrupulous cleanliness is observed. While cleaning it, replace the check balls and associated springs. If this checks out OK after the maintenance, then it's possible the pistons, accumulators or clutch packs have probably worn out. If by this point, the transmission still doesn't function normally, then replacement is the only fix. No DIY repair is recommended and may be exchanged in part exchange for a new or rebuilt unit.

the cooler lines are probly clogged causing trans to overheat--buy a haynes manual or chec library in auto section

Check vacuum lines for leaks.

there is ashort to earth in the chime system , what does fuse 8 control ? that is were the short will be

Look on the side of the engine for the firing order, printed in the metal .

Best to ask a Volvo forum Volvo 850 plug wires order Volvo Performance Repairs And Modifications

shifter parts. did you look at volvo dot com, the maker and then click parts department. then see the nice drawings? which engine,? the AW71 tranny?????????? you can look for any part on car here. http://www.volvooemparts.com/a/Volvo_1991_240/__5705625/Shift-control-AW7071--1991-1992-AW70--1991-1992/GR-54853.html

right next to catalytic converter

Sounds like you have a hole in the under body somewhere.

They switch back and forth at the door panel switch for up and down. I test form power and polarity using a simple 12v test light/probe at the switch, grounding the test light clip to a bolt and then trace the power to the motor from there.

The speed sensor or crank sensor as called by other vehicles is on the rear pass side. Follow a black wire that looks like a spark plug wire. It has a connector and 1 bolt where it attaches near trans. Well known for failing and no spark.

answered all ready 100% back and read your double posts.

Check for rusted body parts,suspension mounts etc May have to replace the springs Shocks have nothing to do with ride height

use an assorted number of lengths (extension bars) to get back to where you can turn the socket. Use a universal joint to get alignment.

Check the Fuel Pressure. You may have a plugged fuel filter of bad fuel pump.

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WD40 and several paper towels. Soak the switch and work it back and forth and repeat until it works. Corrosion is the problem.

sand paper