Car Questions
RepairPal is your advocate for car care advice and guidance

Turns over but will not start

(1990 Toyota Corolla)
in Richmond, VA on July 05, 2009
engin turns over but it will not start.
Displaying 3 answers & 2 comments
Popular Answer
Turns over but doesn't start would rule out battery and starter but leaves to many other possible causes to guess at with out being able to see the car first hand. The car needs mechanical integrity/ develop compression to start, so the timing belt needs to in tact to keep the valves in synchronization with the crankshaft so they open and close at the appropriate time.
Next the engine needs ignition to set fire to the fuel. The ignition distributor on the Corolla is driven by the camshaft so if the rotor in the distributor spins as the engine is cranked over at least you know the timing belt is still attached. Remove a spark plug wire put an old spark plug in the plug wire end, hold the metal case of the spark plug (that screws into the cylinder head) firmly against any metal surface of the engine for ground/earth. Get a friend to crank over the engine. Do you see a spark jump across the spark plug? If not the ignition system may have a failed ignition coil, ignition rotor, distributor cap or rotor, or loss of electrical power to the ignition or failed sensors in the distributor.
Electrical sensors in the distributor need to tell the fuel injection computer that the engine is cranking or running to operate the fuel pump. With the engine cranking fuel pressure should be prescient in the fuel rail in the back of the engine. If you have fuel pressure it say the sensors in the distributor are actually working.
Unfortunately to many things could cause your no start condition.
I am working on a long detailed article with pictures to address this question as it is frequently asked.
on June 09, 2010
im going 2 uti and this guy here really knows his stuff. listen 2 him
on June 09, 2010
I had a bad fuel pump and the car would turn and after while of turning the car would start. After I changed the fuel pump everything was working again. however, after a while it started doing the same thing. Im thinking something electrical. What can it be??
on June 03, 2010
my fix was a new distributor if all the voltages come by as good. get an owners manual and test all the troubleshooting steps. like auto tech said there could be many reasons why it wont start
on September 14, 2010
won't start
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Car will not start. it cranks but will not turn over. oil is low
Since replacing my engine, air conditioner, timing belt among other things when the temperature gets above 85 degrees...
Didn't find what you were looking for?