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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...   Chevy strut replacement I'm trying to get a sensor of some kind ...   2020 suburban new transmission and issues after install recently had the transmission fail at 11...   Caliper piston post cleaning won't screw in Hello, 2013 Hyundai Elantra limited (ma...

Search Auto Parts Search 2013 Hyundai Elantra shudder at Idle Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Engine and Car Noises Matt98svt Novice Jan 12, 2020, 7:00 AM Post #1 of 3 (1821 views) 2013 Hyundai Elantra shudder at Idle Sign In Ok so my wife has a 2013 Elantra 4cyl with 129k that is having a off and on shudder at idle. It did this awhile back and I simply ran a can of sea foam through it and it went away. It never stalls when doing this or feels as though it’s missing when running. No check engine lights. The idle will just drop for a second and the engine shudders like it’s going to stall then come back to normal. Plugs were changed at 100k but haven’t checked them yet. Where should I start Tom Greenleaf Ultimate Carjunky / Moderator Jan 12, 2020, 7:23 AM Post #2 of 3 (1819 views) Re: 2013 Hyundai Elantra shudder at Idle Sign In A code reading may help but some things you can do before that: Note: Watch out for SeaFoam it's really strong try to use less than it suggests on container. That works for fuel things but may also have trashed the plugs. Look for and check for vacuum leaks, integrity of intake parts - all of them. IDK, some if one cylinder can feel it at tail pipe while active then know how to cancel plugs one at a time target which then why it's failing. That's just some things you can do quickly and easily before moving on to the fix it not just some of those, T Hammer Time Ultimate Carjunky / Moderator Jan 12, 2020, 7:46 AM Post #3 of 3 (1816 views) Re: 2013 Hyundai Elantra shudder at Idle Sign In It sounds like you have an intermittent misfire. This will eventually get picked up by the computer and set a code. The way the computer works is it has to see this problem 2 consecutive times before it sets a code. On the first event it sets a "pending" code which can be read by a professional scan tool. Once you get some sort of code it will identify which cylinder has the issue and you will be able to investigate further. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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