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Engine rotates but won't turn over

Just replaced spark plugs, wires, ignition rotor and fuel filter. It turned over briefly and then repeated the same as before. Has had erratic idling over several weeks even after emissions work was completed last month. No codes are showing and it passed emissions. Car has a new alternator, new mass, new oil change and filter, new muffler and resonator, new relays, new vacuum hoses, new egr valve solenoid, new timing belt, new battery and 2 new o2 sensors. Any ideas? Should I check the starter solenoid and if so, where is this exactly on this vehicle? Car is parked at home and not turning over, but everything works on dash and it sounds as if it will turn over. Thanks!

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  • Cars & Trucks Master
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Cycle the key off and on about 5 times to fill the fuel filter, you may just ne3ed the system to self bleed the air out.

Posted on Apr 12, 2014

Testimonial: "tried turning key on and off 5 times and no difference-still cranks but won't turn over - what next?"

  • yadayada
    yadayada Apr 13, 2014

    Get a can of spray starting fluid from the parts store and spray it into the engine air intake while a helper tries to start the engine, if it starts then you have no fuel reaching the injectors most likely, then borrow the tool needed to check the fuel pressure from Autozone and check the pressure reading if there is any.

  • julie chandler Apr 15, 2014

    Thanks Dennis! After trying the above, I took off the distributor cap and cranked the engine. Spark exited a crack in the ignition coil housing inside the distributor. I ended up removing the distributor and returning the recently purchased cap and ignition rotor to Autozone. The location I initially purchased the parts at refused to refund for the parts even though their policy states otherwise. Another location completed the return and I was able to purchase the full distributor; however, I was told I needed to purchase the distributor mounting gasket which they did not have in stock. Another trip to O'Reilly's resulted in finding the gasket. Lesson learned here - open the box before purchase and note if gasket is included which was already mounted on the Duralast distributor for the pathfinder. Neither company thought the mounting gasket came with the distributor. I followed the Hayne's manual for the 3.3l v6 instructions making all required marks for removal and installation. As a follow-up, I adjusted the ignition timing and my car now runs better than when I bought it used years ago! Thanks for your help. Anyone experiencing erratic idling should consider checking your spark plugs, plug wiring, and distributor. My car purs like a kitten - what a relief!!! Final lesson - gather the right tools B4 starting a repair to avoid multiple trips to the store. I needed a 3/8" universal socket to remove the hold down bolt on the distributor which is on an angle, several extensions for that crazy location of the #6 spark plug down in the dark valley behind the intake manifold, and whale load of patience. Make lots of good marks on the old and new distributor because this car is fussy on tiny adjustments to the timing.

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1 Answer

Engine Rotates (acts as it will start) won't fully turn over.


Did you replace the TPS (throttle position sensor)?? Try that if you haven't so. But if you did that already, and still getting the same problem, I would suspect the fuel pump going bad.

Apr 12, 2014 | Cars & Trucks

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Chugs


fuel filter or a fuel pump could also be plugs, wires, cap and rotor I would try fuel filter first then take a plug off a cylinder and hold it close to screw driver or something(dont hold unless have rubber to grip to please dont get shocked) if it doesnt spark your not getting spark and try plugs wires cap and rotor if it does spark then open gas lid have someone turn ignition switch on and listen if you here the fuel pump is still good if not replace it. It does sound like a fuel pump

May 31, 2013 | 1995 Chevrolet Monte Carlo

1 Answer

1997 Saab 900 SE Turbo. Problem repeats. Car is off the road. Had started up just fine, several days in a row, now it turns over just fine but does not start. Can hear the fuel pump pressurize. HAd done...


start with the basics: an engine with no internal problems (like timing belt broke, or valve train not timed) needs fuel and spark to start.Since your getting fuel up to the fuel rail to feed the injectors, lets assume for the moment that the injectors are working to put gas into the cyllinder (You coud check that by pulling a plug or two out and see if they are wet or smell of gas.) Then check for spark (Hold the metal tip of plug wire 1/4 inch from a metal bolt or ground on the engine. Careful you don't get a shock-you can also buy a spark checker for a few bucks. just put the plug wire on it and ground it with the clip. Then you won't get a shock.) If you see that it is getting spark, then you may need an expert diagnosis for why it won't run. If you do not detect any spark (might want to try more than one plug wire) then you need to diagnose your ignition. If your car has a distributor, take off the cap and check inside for a cracked dist. cap or bad or worn rotor. You may also have a bad ignition coil or ignition module (expensive, but not as expensive as a bad engine control computer. Distributorless ignition? Again, may be a bad coil, coil pack, or ignition module. good luck, i'm about out of suggestions.

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1 Answer

I just installed a cap and rotor onto my 95 chevy caprice and it still won't start up.I turn the engine on and it tries to fire up but then dies.


NEED TO DO A TUNE UP CHANGE SPARK PLUGS AND WIRES.CHANGE AIR FILTER AND REPLACE FUEL FILTER. CLEAN FUEL INJECTORS.SOUND LIKE ENGINE IS NOT GETTING ENOUGH FUEL TO START.

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1 Answer

Poor gas milage


Poor gas mileage can have many roots but the best way is always to start with the ignition system. Have a look at the sparkplugs, if you've got the I6 4.0 engine it is easy to check them. Spark plugs are cheap and easy to replace. Also check the spark plug wires, be sure the connections are tight and free from rust. Check the distributor cap and rotor and if they are rusty/greasy clean them up. After you've cleaned and checked the ignition items (spark plugs, wires, distributor cap and rotor) you can move on to the fuel injection system.
Replace the air filter, it is cheap and most people overlook that single item.

When was the last time you replaced the fuel filter? A clogged fuel filter reduces power drastically which in turn affects fuel mileage.

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1 Answer

95 chevy blazer - engine turning over but not turning. replaced cap & rotor + fuel filter.


3 things make an engine run, fuel, electrics and gearing, first thing, remove the cap and crank the engine, determine if the rotor is moving, this will eliminate a broken cam, sprockets, chain or broken teeth on the distributer. next with the ignition lights on rotate the roter button by hand in between contacts, you should hear and see small spark, replace the cap and crank engine with a plug lead off, ask a friend to see if it is sparking onto metal nearby. Next remove fuel line and crank engine to see if fuel pushes from the line. then that leaves gearing, timing must be correct, check the lead numbers are in correct firing order and timing is right. Hope this guide helps you, Good luck

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I have a 2001 chevy express 1500 v6 it wont start i check fuel pump,fuses and replaced distributor cap and rotor. havent check spark plugs or wires. it wont start...


Check for broken timing belt. Put a screew into spark plug head put the other end close but not touching to a metal engine part. have some one check for spark while you turn over engine. if thei is no spark check with distributor cap off if the rotor rotates when engine is being tuned over. if not then check timing chain. Good luck.

Jul 07, 2009 | 2001 Chevrolet Express

2 Answers

Engine rotates but won't start


Here are a few things you can try to debug the no spark issue. I hope these help you out. 1. Remove the distributor cap and crank the car. If the rotor turns you're ok. If it doesn't turn then that's you're problem and you will probably need to change a timing belt/chain. 2. Check the spark from the ignition coil by pulling the coil wire from the center of the distributor. Use an alligator clip to attach a short wire to the coil wire contact. Bare the other end of this short wire and set it up so it's sitting very close to the engine block. Turn off the lights and try to start the car. You should see a spark jump from this wire to the block. If you don't see a spark it's likely your ignition module or ignition coil is bad. 3. If you have a spark maybe it's not getting to the plugs. You may need to replace the distributor cap and rotor. You can test if the plugs are sparking by pulling one, re-attaching the spark plug wire and seeing if you get a spark when you try to start the engine in the dark. Please note, the metal threads of the spark plug need to be shorted to the engine block to complete the circuit during this test.

Jun 06, 2009 | 1992 Dodge Caravan

1 Answer

1997 jeep cherokee 4l will not start on petrol or lpg


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2 Answers

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Do you have a "no start" based on fuel, ignition, or engine problems? All of these are required to be good to start an engine. Must check for spark at plugs. If o/k check fuel pressure at fuel rail.If o/k check engine copression.

May 05, 2009 | 1993 Oldsmobile Cutlass Ciera

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