I put new wires and spark plugs in. i put new carpet in it and now it wont start at all. it gets fire but it wont start. its not my fuel pump or my starter its not my coils. i have allrudy tested them. plz what could it be
Check the position of the wires with the coil, some coil in Hyundai have number 1,4,3,2 these number are the cylinder, in the motor the cylinder number 1 is the first of the left if you are in front of the hood, and check the spark gap to 1.0-1.1mm
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To check basic spark get a spark plug tester from auto store for about $5. Remove fuelpump fuse. Remove spark plug, connect to tester. Have a buddy crank car an watch for spark. Do this for each plug. No spark is likely a bad ign. wire or coil. Be careful not to touch electrical wire/plug while cranking as they put out a lot of electricity.
No spark at the coil replace all spark plug wire and coil wire but start with fuel pump first it wont start anyways without fuel id look into a new cap and rotar with the plug wires might get lucky and find a distributor at a wreckers for the same price as cap and rotar
First you must determine if the fuel is stopping or the spark is stopping..If the fuel is stopping this could be a computer problem.. If the spark is stopping then it could be the IGN Module in the distributer. or any nomber of sensors. Squirt a little fuel directly into the Throttle body on the intake manifold.. If the truck runs longer its probably loss of fuel.. Do this several times to make sure, be careful and only use a small amounty of fuel.. you do not want a fire.. RE: Spark: Take a plug wire and an old plug..put the wire on the plug.. hold the plug against a good ground .. have someone crank the engine .. does the plug stop firing? The engine dies.. and will not restart for a minuet or so.. during this "no start" time do the plug test. If the plug will not fire during this time take the module out and take it to Orillys Auto parts.. They can test it.. really expensive part. Don't replace until you know it is BAD..
if all you did was this...and and put a new battery in and still wont start...if you have went thru your plugs..wires..distributor..ignition coil...made sure your getting spark..if not..check your relays and fuses..preferebly one that deals with spark and timing for injectors..if everything is fine to that point...then try a crankshaft position sensor...it tells the pcm timing for fuel injectors and fire to the ignition coil...hopefully this helps.
What is the year and model ? You can use a jumper wire to bypass the fuel pump relay to see if it is loosing power or a ground signal from the computer. The engine has to produce oil pressure for the fuel pump to keep pumping after it starts. Are you loosing fuel pressure or spark ?
I would try making sure spark plug wires are put on in the correct firing order. This is a common mistake in tune ups. Most intake manifolds have the firinging order cast in. Plug gaps correct? I cant come too far away.
does it crank over and not fire if so check for spark if tou have spark check the fuel rail for a tire valve looking device if cap is still on remove and press shrader valve while someone cranks engine if you have no fuel spraying out of this in great volume check fuses for fuel pump try swaping fuel pump relay with horn relay if these things do not work look under or just above carpet line on passengerside floorboard in center area near heater box for the inertia switch if red button can not be pushed unplug and jump plug with small wire and crank over if it starts this is your problem if you do not hear fuel pump at this point fuel pump is bad
Did you check the spark? Pull a plug and reconnect it to the wire and lay it on a piece of metal away from the piston hole, (flame thrower) And click it over to see if it sparks. If no spark, you have a bad coil or coil pack. You should be able to find one in a junk yard, don't go out and buy a new one, it could be something else. Like low oil, fuel pump, ignitor, etc. If it sparks, squirt a little fuel into the spark plug hole and fire it up and see if it fires that way. Have to narrow this down to something. Check it out, hope this helps.
I'd start with one of these and move on to the next.
Is it getting fuel? You should have an "in tank" electric fuel pump. When you turn the key halfway (just before turning the engine/starter over), you should hear the fuel pump prime. Easy way to check is to look in the throttle body while someone turns the key to the "on" position. You should see/smell the fuel. You can also listen to the gas tank while the key gets turned. You should hear the fuel pump run.
To check spark, pull a spark plug out, put it back on the plug wire and rest the electrode end of the plug up against the engine or exhaust manifold and have someone turn the engine over. You should see the spark plug firing. Don't hold the plug or wire while doing this. You'll get zapped if it's working ok.
If these both check out ok, then take a look at your firing order. If it's off by a significant amount, it may not fire. I've seen this happen when a cap/rotor/wires were changed and the wire/rotor was not positioned on the correct cylinder. (Most of the time they will at least fire or backfire, but either not stay running or run REALLY badly if the firing order is off.