Driving with bad ignition coil reddit. Virtually no acceleration. I've already c...

Driving with bad ignition coil reddit. Virtually no acceleration. I've already changed the alternator, spark plugs, checked the ignition coil and cleaned the injectors. In the modern day, cars have a single coil for each cylinder. If you've got a misfire on a certain cylinder and it follows when you move the coil to a different cylinder, the coil is the issue. Plugs and coils are the most common but there are other causes. Question is, can I drive short distances to groceries and stuff before they arrive? SC - 1st Gen (1992-2000) - 93 sc400 ignition/fuel issue - Posted about a month back about issues I was having with my SC. Things I've noticed: 1st TB plate is stuck open Fairly loud sucking sound coming from TB. Hi. Someone else can chime in if the ignition coil driver is embedded in the PCM or not. I read the datastream and found cylinder 1 was misfiring. The worst it would do is foul up the spark plugs (usually replaced if doing a coil, not necessary). Driving with a bad ignition coil is not advisable and should only be done for short distances to reach a repair location. Yesterday my Check Engine light just came on and the code was for a bad ignition coil. That sounds like a simple task, but it's important when it comes to your car's fuel efficiency and reliability. Dec 15, 2025 · When a coil fails, that cylinder stops combusting fuel, causing an engine misfire. To answer your question, though: Yes, a bad coil can still fire sometimes. Safe to drive short distances before new coils arrive? My 2013 VW CC started to misfire two days ago. To sum it up: Car is limping. Bad alternator and battery. Today I installed new spark plugs and the misfiring situation has improved significantly but is not completely gone. Sep 3, 2024 · The ignition coil uses electrical induction to supply your engine with the high voltages necessary for proper fuel combustion. I'm not noticing any misfires so I assume I can drive this car for a little longer . CAMRY** What's the tell tell signs of a bad coil pack or sparks plugs? It would be in relation to a Toyota carry 4 door car. A misfire has a very specific starting diagnostic procedure that isolated the spark plug, coil and injector on the affected cylinder. So it's likely that the single ignition coil is bad. I swapped the ignition coils on cylinder 1 and cylinder 4, and then cylinder 4 started misfiring. I would drive until you get a cel light and a misfire code. Idle is super low and near death. Yes it would be fine to drive for a limited distance. That seems high so I am wondering how much time I have to look for a second estimate. Like most major components, these coils should be inspected and maintained regularly. Just need to figure out here coil number 3 is located Car Sparking Plug Tester Spark Plug Checker Ignition System Coil Engine In Line Auto Diagnostic Tool Sparking Test Quickly diagnose problems with all ignition systems Connect the tool between the spark plug and the plug wire Normal sparks of fire gauges as "purple blue and 2cm straight line," if the ignition coil is bad when the color is red or When I unplugged (the top plug) the drivers side coil the car would not start. Oct 23, 2025 · You can usually limp a short distance to a safe place or repair shop with a bad ignition coil, but it’s risky and not recommended—continued driving with a misfire can quickly damage the catalytic converter, increase fuel consumption, and compromise safety. The jerks appear when driving at a speed of around 40-45 mph. Also other stuff wrong with my car. I've ordered 4 Bosch ignition coils but it'll take another 3 days to arrive. There are a lot of reasons for misfire. We've all been there. Plus probably 2 hours diagnostic? Lets take worst case: $1200 - (Parts 200$ x4 = $800) = 400$ for labor & tax 400$ Labor & Diagnostic over 3. So when I replaced that this morning with a new one it is not running any differently than before replacing the "bad" coil. Firestone just quoted me a price of $1400 (!!) to replace the coils and the sparkplugs. Where is that usually located? Id replace all of them but the auto repair store only had one left and i dont have anyway to drive to different locations at the moment. The labor time to replace 4 coils is like 1 hour, maybe 1. You are only effecting the efficiency of the motor. Need a new radiator, idk if it might have it has to do with… Have a 2010 Honda Fit (4-cylinder, ~170,000 miles). Which led me to believe the passenger side coil was bad. Bad ignition coil. I have to replace ignition coil number 3. Smells of gas The role of the ignition coil is to transform the 12 volts of battery power into high voltage to produce a spark in the spark plug. On the passenger side it would start. 33 votes, 132 comments. It will either show you exactly what component is causing the misfire, or it will lead you to the next step in the diagnostic process. 4 banger. I have a nissan sentra 2016. 5 hours. 5 hours means a shop rate of around $114 - $115 an hour. This generated spark then kindles the mixture of fuel and air in the engine cylinder, and the car is able to run and take you places. rttelh qpp zldiifq hrw eahtyfpxq xvytzkgb lxgf exaplg zflmw ihnwsoz