20 Most Recent 1988 Volvo 740 - Page 7 Questions & Answers

GET A NEW COIL FROM AUTOZONE,IF IT DON'T HELP,TAKE BACK AND GO TO PLAN B.

its not the security system , when batterys are removed from volvo's in the 80 models, they loose all there memory in the main computer, and has to relearn, this is a normal condition and cant be fixed, its not broken,, maybe try removing the bulb in the dash

Darcy, there isn't a typical radiator cap like on other cars. You'll have to fill it into the overflow reservoir. Fill it to the MAX line. If you are doing this after a full flush, make sure you bleed the air out: After filling the reservoir tank, start the engine, drive for a few miles(make sure you get pretty high RPMs a couple times). After the engine cools, check the coolant level again, fill it back to MAX.

Generally speaking, there are two ways for gas to get into the engine oil.A leaking fuel injector, or a faulty fuel pressure regulator.

not relay bad connection most likely check at pig tails and verify all other lights are working propely

yes it does. it is called an idle air control valve

Hello

The Engine and Automatic Transmission (not applicable to manual transmissions) in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM. Also always check fuel pressure for correct spec for your make and engine type.

Does check engine light come on and if so it could be a sensor failing and if not i would suggest changing fuel filter and a good tuneup and if no help you may want to have fuel pressure test preformed which tells if fuel pump is weak and may need replaced....hope this information help and good luck please rate my post and it help more help is needed feel free to contact me...

Contact the local salvage yard on this, they have what is called a parts interchange catalog that lists all this info, we do not have it.