I have a 1991 Chevy Corsica that will turn over but not start....any suggestions what it may be? Thank You?

Question

Have changed the spark plugs, fuel filter, air filter.

Answer 1

Unfortunately, It could be a number of things. First you'll have to find out if you have fuel pressure and/or spark. If you're missing either fuel pressure or spark, then a diagnostic scan tool would have to be connected to the vehicle to check for any fault codes. Depending on whether or not the vehicle has a fault code would determine the next direction in diagnostics. IMHO, you need to have it towed to your mechanic, and let them figure it out. Sorry I could not be of more help, but there are so many things that can prevent a vehicle from starting, unless you have the diagnostic knowledge and equipment, it's tough to know. HTH!!

Answer 2

I had a '91 Grand Am that I often had trouble with the "starting procces", resulted to be the "spark control module that is under the "spark distribution module", removeable with "hex" screw drivers. I replaced that thing like 3 times before I found a short in the wiring from an aftermarket alarm sys. that had been removed.
So, First check to see that you have spark at the plugs by placing a metal object into one of the "Plug" ends of the sparkplug wires and rest it close to a grounded metal,or take a plug out and put it in the end of the wire so that you can observe and crank the engine, often, you may see some spark, at times no. When the module begins to fail it will weaken, causing this problem. Most of the time the nodule goes out due to a voltage problem, this, if your not sure of what your doing, should be checked out by a pro.

Hope this helps

Answer 3

Remove 1 spark plug wire and get someone that you dont like to hold it.(No one with a heart condition)
Turn the key and try to start the engine.
If you hear them screaming and swearing check for a fuel problem.

Answer 4

Home > Repair Info > Troubleshooting > Symptom > When > Where

Diagnosis


Here's what we think may be wrong with your car and what may be causing it. The list goes from the most likely problem to the least likely. Check out our Product and How To pages for more information about particular parts.

Keep in mind, this is a general diagnosis. Your car may not have the parts we list as potential problems. If you're not sure if you car has a particular part, check your owner's manual.

Feels like Change
Engine Won`t Start Change
Engine Cold Change
Engine Compartment Change




Priority Action Part Type Cause
1 Inspect BATTERY Damaged or faulty battery and/or connections.

2 Inspect COIL - IGNITION Damaged or faulty ignition coil or ignition coil circuit.

3 Inspect FUEL FILTER Clogged or dirty fuel filter

4 Inspect FUEL INJECTOR PRESSURE REGULATOR Faulty fuel injector pressure regulator or circuit.

5 Inspect FUEL PUMP Improperly functioning fuel pump or circuits.

6 Inspect WIRESET Damaged, worn, or deteriorating spark plug or coil wire(s).

7 Inspect CONTROL MODULE-IGNITION Faulty ignition control module or circuit.

8 Inspect SOLENOID SWITCH Damaged or faulty solenoid switch or solenoid switch circuit.

9 Inspect STARTER Damaged, worn, defective, or faulty starter or starter related circuit.

10 Inspect NEUTRAL SAFETY SWITCH Damaged or faulty neutral safety swittch or circuit.

11 Inspect FUSE Corroded, burned, or shorted fuse may be interupting power source.

12 Inspect FUSIBLE LINK Corroded, burned, or shorted fusible link may be interupting power source.

13 Inspect BATTERY CABLE Corroded, broken or poorly connected battery cable.

15 Inspect DISTRIBUTOR CAP Loose or cracked distributor cap

16 Inspect DISTRIBUTOR CAP AND ROTOR KIT Loose, cracked, or worn distributor cap and ignition rotor.

17 Inspect FUEL SYSTEM PRESSURE Incorrect fuel pressure being delivered to carburetor or fuel injection system.

18 Inspect FUEL INJECTOR Plugged, dirty or poorly connected fuel injector.

19 Inspect IGNITION SWITCH Worn, damaged or faulty ignition switch or circuit.

20 Inspect SPARK PLUG Fouled, damaged or broken spark plug(s).

21 Inspect BELT Incorrectly routed, adjusted(tensioned), missing or worn drive belt(s).

22 Inspect TIMING BELT Slipped or broken timing belt.

23 Inspect TIMING SET Slipped timing chain or worn timing gear(s).

24 Inspect FUEL TANK Contaminated fuel from rusted or deteriorated fuel tank.

25 Inspect TIMING SPECIFICATION Incorrectly adjusted engine timing.

Answer 5

Spray some ether in the throttle body. If it fires, you have a fuel problem. If nothing happens, you should check the ignition module behind (under) the pickup coils.

Answer 6

might have too change wires i want too say fuel pump check your battery only if it do like a clicking sound when you try to start the car or you may need major tune up

Answer 7

Check your distributor... it might be burnt up inside.
Last thing remaining to prevent fire to the plugs.