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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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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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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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 ...
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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 ...
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228 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 ...
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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 ...
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76 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 ...
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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 ...
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439 views

Pontiac Sunfire mysteriously won't start

So, here's the deal: -No lights, no noise, no clicking. -Battery voltage reads fine on multimeter. Terminals are very clean and not corroded. -But it won't jump start. -Headlights turn on. -Fuses are ...
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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 ...
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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 ...
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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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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 ...
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1answer
240 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
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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 ...
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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 ...
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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, ...
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1answer
592 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?
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99 views

'95 Chevy Blazer suddenly refuses to start

While driving my '95 Chevy Blazer (4.3L V6) on the highway, I pulled off to use a rest stop. The engine was (and has) been running/starting well, and upon returning to leave, the engine would not ...
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2answers
725 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 ...
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91 views

Cooling the ignition coil

I had an old 64 Fairlane that died in rush hour traffic one day. I called a buddy who worked near me-- he pulled up to the side of the road with a bag of ice, and held it to the ignition coil. The ...
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1answer
148 views

Reprogramming a Magneti Marelli Microplex MED604C

Im interested in reprogramming a Magneti Marelli Microplex MED604C ecu for the ignition of a uno turbo, but I can't seem to find any documentation for this? I'm new to ecu remapping, and my ...
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329 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 ...
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303 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, ...
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751 views

Screeching noise when attempting to start car

I have a Ford Bantam 1.3l pickup (South African) with 31 000 km on the clock. This morning when I tried to start the car (cold start), it made a loud scratching/screeching noise (like when turning ...
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962 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 ...
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676 views

Engine revs to 4000 RPM without pressing gas pedal

I tried to start my car today but something strange keeps on happening. It turns on just fine, but once the engine is operating it starts revving to 4000 RPM even though I am not pressing the gas ...
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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 ...
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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 ...
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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 ...
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391 views

Is there really such a thing as a skeleton key?

I've worked in the motorcycle industry for a while. I've heard ridiculous claims of something called a "skeleton key" which could turn any ignition to "on". Does something like this really exist? Is ...
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196 views

AJS Regal Raptor cranks but won't run

I have a AJS Regal Raptor DD125E. When I push the starter switch the engine spins but no spark at the plugs. However as I release the starter switch I get a spark from the plugs on the engine overrun. ...
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2k views

Car turning itself off in highway

I drive a 2001 Chevrolet Lumina and I was just wondering if someone here has had any experience like mine. Today I was driving on the highway and then suddenly the car had turned itself off ...
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187 views

replacing distributor— spline doesn't align

I'm working on my 63 impala (283 motor) and the previous owner had put a beat up Delco HEI distributor on the car, but it's so large that you can't really time it correctly-- the cap hits the firewall ...
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53 views

New breaker points not working

I'm trying to replace the breaker point on my 1980 Oldsmobile, trying to fix some spurious misfires and engine stalls. The car was converted to gasoline in the early nineties or late eighties, engine ...
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1answer
166 views

Cannot get Kubota tractor engine to fire

I have a Kubota T2080 lawn tractor. It has a basic 2-cylinder gasoline naturally aspirated engine. I let it sit last winter and now that it's the spring, I cannot get the engine to fire. The electric ...
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731 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 ...
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3answers
1k views

2001 Maxima starts but won't stay running

I have a 2001 Nissan Maxima 3.0L V6 that starts no problem but dies almost immediately. If I give it gas as I start it and hold the idle around 1500-2000 for a few seconds, then ease off, it will stay ...
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1answer
241 views

How do I wire an MVH-150UI to a Peugeot 206?

Its just flattening my battery and leaving car headlights on? Even used ISO an adapter. Stereo is staying on when I have ignition off. Can someone tell me how to do this as don't really fancy paying ...
5
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1answer
52 views

Alternative location for motorcycle ignition coils?

I recently replaced the ignition coils on my 81 Suzuki 450. The aftermarket coils are just large enough that the tank won't seat right, even after adjusting the bracket. Would there be any issue in ...
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1answer
298 views

Jeep stalls after about 10-15 minutes driving or idling

1996 Jeep Grand Cherokee Limited This just started yesterday. Instance#1: After about 10-15 of driving (note: It had been about 12 hrs since it was last used) I was waiting at a traffic light when ...
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111 views

Toyota Verso 1.6 VVTi 2006 Overheating 7 Not coming on [closed]

How do i know if my head or black is damaged. Recently my Toyota Verso 1.6 VVTi 2006 Model overheated when i checked the water from the radiator i realised that there was white greasy thing on the ...
6
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1answer
738 views

I dropped my bike and now it won't start

I have a Suzuki GSX600F Katana. Yesterday, I changed the clutch lever on the handlebar and left the key on. I had to push start my bike. After getting it started, I left it in first gear, and let go ...
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133 views

my 02 Hyundai accent keeps blowing the ignition fusable link keeps blowing

My 02 Hyundai accent keeps blowing the ignition fusable link. What could cause this? We just recently replaced the alternator and battery and it was fine when I parked it, then for some reason the car ...
3
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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 ...
8
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1answer
100 views

Is there a way to test ignition coils with built-in ICM?

My car's service manual shows this for the ignition coils: What is the ICM? Related to http://mechanics.stackexchange.com/a/2850/31, is there a way to check the coils to see if they are working ...
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325 views

Car won't start but all power works [closed]

I have a 2005 GMC Envoy. It will not turnover or click but all power and lights work. I can hear the fuel pump kick in. When I turn the key nothing happens. I touched the starter with a screwdriver ...
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1answer
1k views

Unable to start engine - unable to unlock ignition key Citroen C3

I have just bought a citroen C3 and much to my horror was unable to turn the key in the ignition this evening. Had to wait about 10 minutes until it finally gave way. Anyone else experienced a ...
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2answers
452 views

Golf MK3 battery drains, rapid clicking on start, glow plug light flashes

Does anybody know what would cause the following symptoms? I have a 1996 Golf MK3 diesel (not TDI). I drove the car with no problem three days ago. Today I went to start it, and the battery is ...
2
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2answers
126 views

Something stuck inside the spark plug barrel of motorcycle

I went about changing the spark plugs on my 91' Honda CBR250RR and ran into a problem with the fourth plug. I tried inserting the sparkplug socket but it wouldn't get in there. Using my phones camera ...