An electrical system that handles the spark component of the ignition process. Ignition systems are comprised of but not limited to ignition coils, ECU, signal generators, spark plugs and wires, distributor mechanisms, points, condensers and sensors.

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2004 Kia sedona intermittently wont start

my 2004 kia Sedona intermittently refuses to start. I have light, radio, electric windows but just doesn't turn over at all. If I leave it a few hours and go back to it, it'll start first time as if ...
14
votes
5answers
823 views

How exactly does running fuel-lean increase the temperature of ignition?

I learned in this question that running an engine fuel-lean will increase the temperature of ignition, among other things such as causing problems with the catalytic converter. I have no idea how or ...
7
votes
2answers
153 views

Key Doesn't come out of Town and Country

A few days ago I could not get my keys out of my 2005 Town and Country. Soon after, the battery ran out of juice. If I jump the battery, I can start the car and drive it. But when I park the vehicle I ...
3
votes
1answer
32 views

My car won't crank

I started my car the other day and turned the car off. When I tried starting it back up it wouldn't crank. I took the key out and my dashboard gauges would stay on. I can start it up by the ...
7
votes
4answers
749 views

Corrosion on battery, won't start, making clicking noise, won't charge

I'm trying to charge the battery on my 2002 Celica. Here is some background: Battery is a bit old, around 3 years or so. Corrosion has been building on the battery to the point that it almost ...
3
votes
3answers
6k views

what happens when you hit engine button on a keyless ignition?

My car is a keyless ignition and as such just has a button I press to have it start. My question is... what happens if I hit it while I'm driving?
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votes
2answers
2k views

OBD II power when key not in ignition

I can't get to the OBD connector on my car at the moment. As far as I know the OBD II voltage is active even when the key is in lock. Can anyone confirm this? edit : It's for a product that ...
4
votes
2answers
2k views

Misfire in cylinder 4

About 8 months ago my engine light came on, and after pulling the code it was a misfire in cylinder 4. My vehicle is a 2004 Mazda MPV, and only has 60K miles on it. Everyone I talked to was skeptical ...
7
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1answer
29 views

1973 CB350-four, no spark on 1 and 4 when it's cold

When this bike is cold the 1st and 4th cylinders do not fire. Pulling the plugs and checking them, there is not spark. If you get the bike hot, it runs really bad on the way there, 1 and 4 come ...
3
votes
3answers
2k views

Normal oil and fuel consumption for MkIV Golf 1.4l?

Vehicle: 2002 VW Golf (German) Engine: 1.4 liter, gasoline 75 hp Odometer: 60k miles / 100k km Fuel consumption: 29-33 MPG / 7-8 liters/100km Oil used: 5W30 ...
4
votes
0answers
60 views

03 chevy impala- I have a bad misfire

When I push on the gas it hesitates to go. The check engine light starts flashing but once it gets rolling its gone. I change the spark plugs, put in a gas treatment, shot some B-12 in it and ...
3
votes
3answers
37 views

What is the State of the Ignition Pin of a Vehicle?

I got a Vehicle Tracking Unit, The Connection required is Red - +12V Black - GND Green - Ignition. I need to test the unit before putting it into the car. So to simulate the ignition procedure, what ...
3
votes
1answer
4k views

Car won't start, lights and electronics flicker

Ford Focus. When i turn the ignition, the engine will not start. The lights and electronics will flicker while i am turning the ignition. I do not hear the engine "turning over". What is my issue? ...
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vote
3answers
101 views

Relation Between RPM and Spark Advance

It's my understanding that under normal operation spark advance is directly proportional to RPM, i.e. as RPM increases so does spark advance due to the need to ignite the AFM earlier the quicker the ...
8
votes
1answer
252 views

What can I do with an Inline Spark Tester?

Due to my recent problem with weakly firing plugs, I'm looking at inline spark testers. I've seen three basic types: The simple flashing one which goes in between the wire and plug with the plug in ...
5
votes
3answers
122 views

97 Honda Accord won't start after head gasket replacement

I recently replaced the head gasket on my Honda Accord. The cylinder head was tested at a machine shop and they also replaced the valve seals. I didn't do any work to the cylinders, except use ...
4
votes
2answers
96 views

Toyota Sienna 2005 ignition switch issue?

Takes some time to start up Sienna. Have to take out the key, put it back, wiggle it around, eventually it starts. When it just started happening, we took it the Toyota Dealer and they replaced the ...
3
votes
1answer
87 views

How is Dodge Spark Advance Controlled by the PCM if there is a Distributor?

The Chilton manual for the late 90s and early 2000s Durango and RAM says that PCM controls ignition timing and spark advance. I don't understand this, because these motors are equipped with a ...
4
votes
1answer
2k views

Weird Problem! Need to turn steering wheel to crank start the car

I have a 1997 Toyota Corolla It started to have starting problem a few weeks ago. If I didn't drive my car for 1 or 2, the car won't start. The only way to start the car is to turn the steering wheel ...
5
votes
1answer
85 views

Motorcycle Starting Issue - no longer starting after attempting to jump with a car battery

I tried jump start my bike with my car battery because the motorcycle battery was really low and would not start. I mistakenly touched both ends of the jump leads together and cause a big spark, ...
2
votes
0answers
611 views

How do I fix an immobilizer problem on a 2006 Kia Sedona?

How do I fix a problem with my immobilizer? This is a follow up to this question: 2006 Kia Sedona intermittently not starting What parts (if any) do I need? What would be the best way to go about ...
7
votes
3answers
310 views

Single-cylinder engine - no camshaft position sensor?

I'm doing some research on the Honda CRF450. This is a single-cylinder engine. I'm interested in the fuel-injected models (not the older carbureted versions). As far as I can tell, this engine ...
7
votes
1answer
308 views

2003 Honda Accord - Intermittent no start/no crank

2003 Honda Accord, everything lights up fine but it has a really strange “groaning” noise, kinda quietly. Then after a few tries it starts up perfectly fine. Sometimes it starts up first time, ...
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votes
2answers
735 views

What will cause my Ford Expedition not to start?

I have a 1999 Ford Expedition. I was having trouble with it idling and now it won't start. What can cause this problem? Yesterday I was driving and had to double foot it to keep it idling. Every ...
2
votes
1answer
73 views

1987 Yamaha fz700 handlebar lock

On my ignition there are a couple positions, on, off, lock, and p. I assumed the lock was for the handle bar lock, but it doesn't lock when I switch it to that, when I switch it to P though it ...
4
votes
1answer
56 views

Frequent spark plug change

I have a Hyundai Tucson , 2008 model. About 20 months ago while my wife was driving the car, some smoke come out and she stopped the car and they tow it. (She doesn't remember white or black smoke) ...
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votes
3answers
1k views

Why the wasted spark in four-stroke motors?

This just came up in my curious mind. In a typical four-stroke engine with an even number of cylinders, spark plugs fire in pairs. This means there is a wasted spark as one cylinder is in exhaust, ...
4
votes
3answers
323 views

Car will not start Sometimes?

Hey i just wanted to ask about my girlfriends car she has been having problems with for over a year.. we had it checked but they always say nothing is wrong (usually because the car starts when they ...
2
votes
2answers
111 views

Replacing Spark Plug with Laser Iridium NGK Spark Plug

I have 2012 KTM Duke 125 at 10 000 miles (16k kilometers). I am the third owner of bike for 2 years. Whenever i twist the throttle fastly, motorcycle is chocked up. So i thought the problem could be ...
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vote
1answer
30 views

Studder first starting

Hyundai Tucson 2008. Gasoline model. I live in a very hot climate and when I start my car in the morning it studders for a while. If I pump the gas, it disappears and doesn't come back. I ...
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vote
1answer
52 views

Do Distributor Caps need Regular Replacement?

Does the rotor physically contact the points in a distributor cap and cause them to wear down such that the cap would need replacement at regular intervals?
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votes
3answers
7k views

What to do if 2010 Chevy HHR key is stuck in run position?

The key in my 2010 Chevy HHR automatic will not turn back to the OFF position. It is stuck in the RUN position with the car on. What is the cause of this problem? How can I shut off the car?
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0answers
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ford mondeo v6 st24

Just wondering if anyone can help as we have this Mondeo and all of a sudden all the ignition went and have no power at all. Any suggestions as to what it might be? All the fuses are fine and still ...
2
votes
1answer
229 views

Why Does a Cracked or Loose Distributor Cap Cause Problems?

Why does a distributor cap that is improperly sealed, due to being either loose or cracked, cause problems such as erratic idle or not starting? Could a loose cap cause problems with an optical rotor ...
4
votes
0answers
109 views

Car won't unlock with remote and won't start? Toyota Camry 1999

My sister gave me this car for school and she told me this happens a lot. Her mechanic friend says it's an alarm problem and my alarm is locked. Unfortunately her and her friend live on the opposite ...
5
votes
1answer
967 views

Acceptable amount of slack in a timing chain with high mileage?

1995 Chevy S-10 Blazer - 4.3 L Vortec V6 (vin W with PCM) - 230,000 miles original owner. FWIW, this model car/engine does not have timing chain inspection and/or changing as part of the routine ...
4
votes
2answers
1k views

What is an acceptable amount of up/down play in a distributor shaft?

1995 Chevy S-10 Blazer - 4.3 L Vortec V6 (vin W with PCM) - This is the distributor style with vertical cap posts. 230,000 miles original owner. EDIT: Please click on link below to see a photo ...
3
votes
1answer
245 views

Truck won't crank; no sound from starter relays

I have a 1997 Expedition, which badly needed a tune up: the motor was shaking. I changed the plugs, which stopped the shaking; two days later the truck won't start. The battery is hot and the lights ...
1
vote
1answer
37 views

megane 2 2005 (55 plate UK) issues starting

On a morning I get in the car and press the clutch and start the car using the button as normal but sometimes I can hear the car trying to turn over but nothing happens, then if I turn it off and try ...
3
votes
0answers
77 views

2004 ford taurus - screeching sound when attempting to start the car

To start, I know nothing about cars aside from how to drive them. I have a pre owned 2004 ford taurus with 60000 miles. Recently, it has been making a screeching noise when I turn the key to start the ...
8
votes
3answers
2k views

Car won't start, possibly due to ants in batteries

Yesterday there were a ton of ants crawling out of some hole in my backseat. I sprayed the shit out of them. This morning, when I try to start the ignition, my engine clicks a lot but won't turn ...
1
vote
2answers
131 views

Half of my cylinders aren't firing. Is it safe to move my car to a garage (~30km)?

I am having some issue with my ECU or ignition system which I can't fix myself. Only two of my four cylinders are firing. Is it safe to drive my car to the official mechanic at 30km distance? Should I ...
2
votes
0answers
38 views

Defective connection between radiator fan relay and ignition?

I have a Toyota AE101 DX Corolla. When I turn the key to start the car it does not tumble. It turned out that the fan relay doesn't come on with the key turned on like it usually does. Mind you this ...
2
votes
2answers
736 views

Ignition Switch vs. Ignition Lock Cylinder

I have a 2010 Ford Escape with 95,000 miles. I have a problem with the car that when I put the key in and turn, the car doesn't crank. The lights come on when the key is turned, but there's no sound ...
2
votes
1answer
242 views

2007 Hyundai Sonata Automatic Key Won't Turn

This started before the steering wheel was locked, I locked it because I forgot what a locked steering wheel feels like and wasn't thinking too much. Had a LOT of time to wiggle the key before it was ...
2
votes
1answer
73 views

What do you do with dielectric grease on spark plugs?

There seems to be a lot of conflicting answers on what you're supposed to do with dielectric grease. The instructions on the grease I bought says to squeeze it into the boot, but everywhere I've read ...
2
votes
1answer
594 views

2015 hawk 250cc enduro motorcycle

While riding down the street, our motorcycle just died. Tried to restart it and it sounded like it wasn't firing. We changed the plug and ignition coil and still not firing. What should we do now?
2
votes
1answer
42 views

Does electrode size/shape matter?

I have an 84 Ranger and I recently bought some new spark plugs for the motor. I noticed that the old electrodes were huge compared to the brand new ones I just bought. Does the size of the electrode ...
2
votes
2answers
330 views

Engine jerking and revving, multiple failed ignition coils

This problem started a month ago. My Aveo started revving and jerking when it was sitting at a light on my way home (2 blocks from my house) and the engine light came on. I drove it home. The next ...
2
votes
1answer
305 views

How to diagnose a bad stator?

Consider the following diagram : This is for a Polaris sportsman 700 2003 ATV On the top right corner, you have the information to check if the stator function properly. For the first three coils, ...