20 Most Recent 1985 Buick LeSabre - Page 8 Questions & Answers

didnt specify vehicle --generic answer --why did you change all those parts were they all bad ---square one check fuses and relays try to start with ether /starter fluid if starts fuel problem retest pump new doesn't mean free from defects also test relay and wire harness --if no start possible ignition switch wiring retest coils and plugs for spark ----with another person have them try to start vehicle while you feel back of exhaust if feels and sounds clogged possible bad catalytic converter---test and check egr valve possible carbon build up

Light is on because the system has detected a fault. A code read is needed to discover the nature of the fault and then after repair dedicated diagnostic equipment will be needed to clear the code. Sometimes the airbag light will stay on when the passenger airbag is switched off, if it has that facility. The actual problem might not be the airbag but the seatbelt pretensioners.

Clean battery cables and replace bolts. The cam sensor manet will not cause it to cut off.

What Year ? The engine turns over but won't start ? Is this the problem SECURITY light lit or flashing ? If SECURITY light is on the PCM/ECM - engine computer disables the fuel injectors ,so it won't start . If the SECURITY light is on there is codes stored in the PCM/ECM or the theft deterrent module . Your husband messed with something he shouldn't have .

CHECK TO SEE IF THE BOTTOM BELT PULLEY WOBBLES WHEN CAR IS RUNNING. THIS PULLEY IS CALLED (HARMONIC BALENCER) THANKS MOTOR62500

The first two, the seats and the locks, should be a fuse, but might be a relay. That fuse may be under the hood, or inside the black plastic fuse and relay box under the hood. Since the locks and seats take a considerable amount of current, a relay is the more common problem. Share the year of your car.

With all the sensors an electronics on your vehicle it would be hard to say for sure . A crankshaft position sensor , ignition module would be at the top of my list . There are some good videos on youtube for trouble shooting GM waste spark ignition systems . Wells Distributor less ignition system DIS Training with Sgt Tech P0300...

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loose bulbs , bad ground connections, faulty light control module , faulty light switch

mabe the window is off track

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Mostly the security system cannot be by-passed. It would not be much of a security system if it was easily possible. With some variations a code is recognised when the transponder in the key is in close proximity to an antenna which is in or around the steering or ignition lock and the antenna signal is sent to a black box. When the code is recognised by the black box or ECU it generates and sends another code to the engine management ECU instructing it to switch on and the engine will then start. Obtaining and fitting the new steering lock and keys and having the system recoded is likely to be expensive and inconvenient - it is designed that way to discourage vehicle theft and is why these days most car thefts are as a result of successfully stealing keys. If the car is of low value it is possible to have the engine ECU decoded so it will recognise any code so the engine will start and run. In the UK the procedure is done mail order and takes about a week and costs around £100.

Do you have a 12 Volt test light? Disconnect one cable off your battery and connect your test light to that cable and the battery post. Did it light up fully? Then something is draining your battery. It could be bad alternator, disconnect it and see if your test light goes out. If not, start pulling you fuses out one by one and see If you can identify the circuit that drains your battery. Helpful? I hope so. justrj47 at aol.com

I believe its 3 wires

If the pump is internal yes if external no