What does intermittent no start mean on a car?

Share it! An intermittent no-start condition references any time where starting is possible sometimes, and other times the engine will not start. This implies that the difference between starting and failure to start is not understood.

How to troubleshoot intermittent car starting problems-Quora?

Intermittent no starts are almost always primary ignition circuit problems, i.e an electronic issue that prevents the coils from being triggered and so you will need at minimum a scan tool that can show you cranking RPM and injector pulse as those two signals tell you that the crank and cam sensors are watching the engine turn over.

Why does my Jeep Grand Cherokee intermittently start?

Intermittent starting, sometimes takes 20-100 (+) tries to turn key and get it to crank. If I was in a hurry or had a passenger, it seemed to know and would take 5+ minutes turning key before it would crank and start! I joked it gave me ‘car-ple tunnel!’

What’s the difference between starting and failure to start?

This implies that the difference between starting and failure to start is not understood. When inserting the key, the engine may crank, the engine may sound like it is ‘trying’ to start, clicking may be heard, or nothing may happen at all.

Why does my car sometimes start, sometimes it doesn’t start?

Car sometimes starts, sometimes it doesn’t no start gran… My car has 74000 miles. My car has an automatic transmission. Does the car crank every time and will not start sometimes? In this case, you may suspect worn out plugs or low fuel pressure. If the vehicle will crank sometimes and others it will not, you may have a faulty starter.

How often does a car not start up?

So the problem, not every time but very very frequently.. when she gets in her car it doesn’t start up. The lights and radio work perfectly fine.

Is it a no start or no crank problem?

If that does not fix it, then you may well have either a defective starter, or a worn out ignition sw. (or poor connections at one of these parts). Dont overthink this one, it is a common problem. It is nice of you to tell us that the no-start is a no-crank problem, as this narrows it down considerably, so thanks, and good luck.

Why is the key light on in the dash?

What to do if your Sentry Key Light is not working?

Call around to your local locksmiths. Most guys can come to your Jeep and program the keys to the Jeep. If the key light is on in the dash, the Jeep is not recognizing the RFID in the key. I am not sure what would cause the ECU to lose the key programing.

Why does my Jeep not recognize my key?

Most guys can come to your Jeep and program the keys to the Jeep. If the key light is on in the dash, the Jeep is not recognizing the RFID in the key. I am not sure what would cause the ECU to lose the key programing. My locksmith only charges me $35 for the programing (per key). Karen, is the light flashing or steady?

If by intermittent no start you mean, the vehicle cranks but does not start then I would not bother with the starter circuit , providing it is cranking fast enough, minimum 300RPM. If you mean intermittent no start because of no starter engagement then the problem can be reduced down to starter circuit and anti theft issues if so equipped.

Can a starter fail and then work intermittently?

Or, just a dead spot on the starter. It certainly can happen. It’s probably something that replacing the starter would fix, but not necessarily (example being the one I had where it was a ground strap the detached and was just sometimes resting in the right spot.

What happens when you discontinue power to the starter?

When you start the engine and release the key the circuit will, discontinue the power to the starting motor. If this stays on after the engine has started, the main contacts in the solenoid, have most likely failed. This will ultimately cause serious damage, to the whole starting system and the transmission flywheel.

What does intermittent nature of electrical problem mean?

The intermittent nature of your problem does’t change this diagnosis either. The same electrical connection can work one moment and not the next. Electricity works at the atomic level that we as humans can’t directly observe, which is why we have tools to do electrical testing.

Why does my central vacuum have intermittent shorts?

Intermittent shorts usually can be traced to the connections at one of the wall vacuum outlets. Intermittent shorts happen when the wires become loose and normal household vibrations cause them to make contact with one another.

Is there a problem with my car not starting?

Intermittent problem with car not starting and not cranki… I am having problems with my car not starting. This just recently started happening and it is an intermittent electrical/starting problem. When it won’t start there are no warning lights on the dash, no noises, no cranking… just “Nothing!”

What causes a car battery to start intermittently?

Reconnect the ground cable and re-check the voltage. It will either be completely normal or on occasion the electrical load from the cars computers etc. will cause the voltage to take a significant drop. Then hit the starter while measuring the battery voltage at the terminals.

Why does my car battery struggle to start?

However you start to reach a point where the battery starts to struggle to start the engine due to low capacity. Sometimes the engine will start immediately, then other times it just talks a little longer to start, but the battery isn’t able to supply the power, then you are in the situation you are in now.

Why does my Car start after a long time?

I would blame the battery. A weak battery can hide that it is at fault as long as the engine starts quickly. The capacity of the battery could be getting lower and lower over a long time, but you wouldn’t know because the engine starts and then the alternator takes over.

Why is my car cranking but not starting?

One, your engine is having trouble producing a spark. Two, your engine is having difficulty obtaining fuel. Three, your engine is creating compression. What is so pivotal about these three components is that to successfully run and drive the vehicle the engine needs fuel, compression, and a spark all working simultaneously.

https://www.youtube.com/watch?v=Zy0RBGP_8hQ

Why does my battery have intermittent starting difficulty?

If the battery has an intermittent inter-cell connector problem, the voltage will drop to very close to zero yet if the key is released the voltage will mysteriously go to nearly a full charge condition or whatever it was when the ground cable was reattached as mentioned earlier. I hope this is helpful.

Is there an intermittent starting issue with Thruxton?

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Do you know the signs of a failing starter motor?

Knowing the signs of a failing starter motor, can help you diagnose the problem. When Diagnosing starter motor problems, always start with the battery. So, for your starter motor to work properly, your car battery has to be in; excellent working condition and fully charged.

How can I solve the intermittent starting problem?

Throttle position sensor changed to no avail. further testing revealed that the wires around the fuse box had a significant effect on the problem. I think from my testing it’s safe to say the issue is within the wiring inside the fuse box. The only wire I can think of that could cut off injectors would be the injector relay circuit.

Why is my starter relay not working properly?

Intermittent issues starting the vehicle If the starter relay is working properly, it will send power to the starter every time it is engaged. However, it is possible that the starter relay will become damaged due to excessive heat, dirt, and debris or other issues that might cause sporadic operation of the starter.

What does it mean when your car won’t start?

An intermittent no-start condition references any time where starting is possible sometimes, and other times the engine will not start. This implies that the difference between starting and failure to start is not understood.

Why is my Chevy Silverado 1500 not starting?

However, today, when the truck will crank and start, the antitheft icon goes off after a few seconds with the key on and stays off while the truck is running. It never flashed either today or yesterday though. And I don’t know if the antitheft system disables cranking or starting or both.

Why does my car not start after a few tries?

If your car does not start after a few tries, the reason could be a possible bad ignition switch. Also, if your car starts and stalls suddenly, it can be due to a bad ignition switch. This happens when the ignition switch fails at the “on” position, the one that is meant to power the fuel and ignition systems.

What does it mean when your car wont start the next day?

Typically, this warning light comes on when you turn the ignition and turns off when the engine is started, and you are driving your vehicle. If you experience your car won’t start, then starts the next day, the dashboard light can remain illuminated and show an issue with your alternator.

What to do if you cant find the starter relay?

Reconnect the terminals and try starting the engine again. Check the connections at the starter solenoid (the small cylinder on top of the starter) or starter relay. Most Ford vehicles use a remote starter relay instead of a solenoid. The positive (red) battery cable connects directly to the solenoid or starter relay. Can’t find the relay?

What should I do if I have a problem with my starter system?

Inspecting Cables and Wires. Corrosion around battery terminals prevents electrical flow. This is a common problem on a battery or starter system that hasn’t received much attention. If you notice a layer of corrosion around one or both battery terminals, clean them with a solution of baking soda and warm water.

What’s the problem with intermittent no crank no start?

The problem is an intermittent open circuit between the starter relay and the starter motor. To correct the problem, Ford has issued a new starter terminal pigtail kit (Part #6U2Z-14S411-NA). The installation instructions are included with the kit. Alldatadiy.com and Eautorepair.net are the two best shop manuals—period!

What causes no crank no start?

With a no crank/no start condition, the first thing to check is the battery. The battery or battery problems are the number-one cause of this type of no-start condition.

What are intermittent ignition problems?

No Furnace Power: Check your breaker box for tripped breakers.
Incorrect Thermostat Settings: The wrong thermostat setting is a common source of faulty ignitions.
and loose internal furnace connections can interrupt signals.

Can starter relay work intermittently?

Intermittent issues starting the vehicle. If the starter relay is working properly, it will send power to the starter every time it is engaged. However, it is possible that the starter relay will become damaged due to excessive heat, dirt, and debris or other issues that might cause sporadic operation of the starter.

What is intermittent failure?

Intermittent failures are failures that do not manifest themselves all the time. The fact that they are sometimes there and sometimes aren’t can make them very difficult to analyze. Just like any other FA, the first thing to do when analyzing an intermittent failure is to establish what the failure mode is.

Is the engine not to start when hot?

Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Engine Not To Start When Hot. This topic contains 13 replies, has 6 voices, and was last updated by EricTheCarGuy 7 years, 6 months ago. Recently my 1995 Toyota Camry US 5S-FE (4-cylinder, 2.2 liter, 16-valve) engine always can start when cold.

What’s the difference between no crank and no start?

There’s a big difference between a No Crank and a No Start Condition. Here’s a brief description of both conditions: No Start Condition: The engine cranks (turns over) like it wants to start but it never does. The usual culprits are: Failed crank position sensor.

A common sign of trouble with your vehicle’s fuel system is jerking or inconsistent power while you are driving at a consistent speed, such as on the highway. If you begin to feel the engine delivering intermittent power despite your foot staying in the same place on the throttle, it may be because of an issue with fuel delivery.

Though it might be something else, it’s always good to check the battery first. If the starter motor doesn’t crank and the lights are dim or don’t come on at all, the battery is dead or close to it. The cause can be as simple as leaving an interior light on overnight.

What causes a car to not start at the base?

1 Faulty Starter motor 2 Low voltage/Bad car battery 3 Bad Fuel pump 4 Faulty Crankshaft Sensor 5 Faulty Ignition coil 6 Faulty Ignition Switch 7 Faulty Ignition Relay / Main Relay

What causes a car battery to not start?

Most auto parts stores will test a battery for free to see if it has enough voltage and cold-cranking amps to start the engine. If the battery passes the test, then it isn’t being sufficiently recharged. That could be caused by corrosion on the battery terminals, or a loose or faulty cable.

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How to avoid intermittent starting issues in a triumph Bonny?

With these two measures 95% of starting issues can be avoided with this range of Bonnys. • Release the steering lock. • Check that the engine stop switch is in the RUN position. • Insert the ignition key and turn the ignition switch to the ON position. • Ensure that the transmission is in neutral. • Pull the clutch lever fully into the handlebar.

Why is the starter not working on my triumph?

Apparently the ECU is set so fine that the starter motor armature fails to contact unless all ‘signals’ are perfect. One guy on the Triumph Rat forum has fitted a little push button to the armature to override the ECU when required, I always swear to do the same every time it ‘clicks’ but haven’t got round to it yet.

With these two measures 95% of starting issues can be avoided with this range of Bonnys. • Release the steering lock. • Check that the engine stop switch is in the RUN position. • Insert the ignition key and turn the ignition switch to the ON position. • Ensure that the transmission is in neutral. • Pull the clutch lever fully into the handlebar.

Apparently the ECU is set so fine that the starter motor armature fails to contact unless all ‘signals’ are perfect. One guy on the Triumph Rat forum has fitted a little push button to the armature to override the ECU when required, I always swear to do the same every time it ‘clicks’ but haven’t got round to it yet.

Starting problems with vehicles are almost always related to electrical or fuel delivery issues, but there are a lot of parts in these systems. The battery and key sound okay from what you have said, and it sounds like you can hear the starter engage even when the car wont start, so the starter is probably okay.

What to look for when your engine won’t start?

Check for a blown fuse that may be preventing a circuit from working properly, like the fuel injection or computer system. To operate efficiently, an internal combustion gasoline engine needs a good spark, the right amount of fuel, and good compression (a healthy mechanical condition).

Why does my car turn over but does not start?

The car turns over but does not start. The dealer just replaced the battery thinking it was the battery, but it was not the battery. I do not get any ‘check engine’ light coming on also.

Why does my Mini Cooper start intermittently?

I think its the starter motor, and tried to get the work done under the warranty from the dealer we bought it at, but the Warranty Companys Approved Repairer said they couldn’t do the work to replace it, as it hadn’t happened once during the time they had it! It’s so frustrating, because it’s so intermittent! Has anyone else had a similar problem?

Why does my car not start when I crank the engine?

If the engine doesn’t crank, or makes an unusual noise when cranking, you may have a starting system problem. The car’s security system may have made an error that disabled the fuel or ignition system, or the chip in the key may have failed.

Can a bad crankshaft sensor cause the engine to stall?

If the crankshaft position sensor or its wiring have any issues, it can cause the crankshaft signal to be cut off while the engine is running, which can cause the engine to stall. This is usually a symptom of a wiring problem, however a bad crankshaft position sensor can also produce this symptom.

What causes an engine to stall while running?

Intermittent stalling. Another symptom commonly associated with a problematic crankshaft position sensor is intermittent stalling. If the crankshaft position sensor or its wiring have any issues, it can cause the crankshaft signal to be cut off while the engine is running, which can cause the engine to stall.

An intermittent no-start condition references any time where starting is possible sometimes, and other times the engine will not start. This implies that the difference between starting and failure to start is not understood.

Why does my 96 Chevy Express van not start?

Also had a similar issue spin and no start with a 96 Chevy Express Van with the 5.7L. This vehicles issue turned out to be a shorted pink wire in the wiring harness that runs up the passenger side of the block. The vehicle had died while driving several times and wouldn’t start. Then, finally after blowing a couple fuses, would start at all.

Why does my GM car say no crank no start?

For example, when you operate your remote keyless entry fob, it’s normal for the dome lights to turn on. If you’ve replaced the dome light bulb with an LED style bulb, the new bulb may emit an RF signal that jams the security feature of your GM vehicle so it can’t recognize your key, causing a no crank, no start condition.

Can a Volvo cem have intermittent electrical problems?

When it fails, it can cause unpredictable intermittent electrical problems. It is a lot cheaper to get your Volvo CEM rebuilt service which you can order on eBay instead of getting it replaced by the dealer.

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