20 Most Recent 1990 Toyota Corolla - Page 9 Questions & Answers

Your car manual should give a maximum towing weight in the specifications. Then you will need to know the weight of the trailer+contents.

A couple of things come to mind here. First, check with the previous owner and find out what octaine number gas he was using. If you are using the wrong octaine gas on a high mileage motor you can get the knocking sound. Second the rough idling may be a vacuum/air leak. Check all your air hoses and connections. If you find any disconnected hoses look for an empty connection. If no connection plug the hose and see if that helps.

check to see if the timing belt is still moving the cams. you should be able to remove a couple of bolts on the top of the timing cover and pull the cover back far enough to see the belt. You can also look in the oil fill cap, you may be able to see the cam.you can also remove the distributor cap to see if the rotor is turning. If the belt is fine than check for spark and fuel pressure. My bet is the timing belt. Especially if the engine sounds like it is turning over faster than normal. I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

BAR HEAD GASKET SEALER MOST PEOPLE USE IT TO TRY FIX HEAD GASKET LEAK. BAR SEALER WILL CLOGGED UP RADIATOR, HEATER CORE AND THERMOSTAT.IF COOLING SYSYEM HAS OIL IN IT OR CRANKCASE OIL HAS ANTIFREEZE IN IT YOU HAVE BLOWED HEAD GASKET.

NEED TO REPLACE HEAD GASKET IF YOU SEE OIL IN THE COOLANT SYSTEM BAR HEAD WILL STOP UP RADIATOR AND HEATER CORE CAUSE YOU MORE PROBLEMS.

This is caused by a leaking head gasket. When a head gasket leaks you can get oil in the coolant or coolant in the oil of the engine or both. You will need to pull the cylinder head off, have it checked for cracks and if none are found have it machined flat again and replace the head gasket. Use only a quality head gasket set either from the Toyota dealer or a well known quality brand like Fel-Pro (available from NAPA and others). This is a job that requires some special tools and a great deal of car repair knowledge, time to do the job is about 6 hours.

Hello. Welcome to FixYa.

The most common cause of this issue is a bad master switch on the driver side door. Another common cause is a broken power wire that powers up the master switch. CHeck the wries on the connector of the master switch with a 12 vlt DC testlight, with the key on. If you have power, the wire is good, and the switch is probably bad.

does the brake light in the back window work? if so, the switch is good. check for power at the bulbs. Green/White wires are for brake lights.