I had my radiator replaced also my lower radiator holes replaced and my car keeps shaking really bad when the car is still

ANSWER : The shaking could be the result of a number of issues, including the engine having a misfire (not firing on all cylinders). The radiator replacement would not have created this condition. The vehicle should be inspected in order to diagnose this issue. A YourMechanic certified mechanic can come to your home or place of business to perform a car is shaking or vibrating inspection on your vehicle.

ANSWER : There are reports that the replacement alternators will not communicate with the engine computer and will not charge correctly. I recommend using only the manufacturer approved replacement part. It can be new or remanufactured but approved for use in the vehicle. Some lower cost alternators on the aftermarket will have charging problems since they will not communicate with the ECM on the vehicle and will stop charging.

ANSWER : When you overheated the engine you most likely blew a head gasket and now have low compression in one or more cylinders. Replacing the radiator after overheating the engine that lost power will not fix the fact that the overheating warped the cylinder heads and coolant leaks past the cylinder head gaskets. If you need help with this, a technician from certified mechanic from YourMechanic can come to your car’s location to diagnose your car’s starting problem and conduct any needed repairs.

ANSWER : It sounds like you have 2 problems here, the starter and an engine stalling problem. The starter problem is probably the starter solenoid, a power switch (integrated into the starter assembly) that takes a small current from the ignition switch and engages a large current at the starter. The contacts in the solenoid can burn over time, "sticking", which can cause the starter "run-on" like you described, and a "no crank" condition, because the same burned contacts don’t pass heavy current very well. The poor idling may be due to a dirty idle air control valve, dirty throttle body, or air leak in the intake system of the engine. I would recommend having YourMechanic dispatch a mobile, professional mechanic to your location to do a (Starter Replacement)[https://www.yourmechanic.com/services/starter-replacement] and car starting trouble inspection.

ANSWER : Hi there. From the description you have given, your vehicle shakes over 40 mph. The first thought would be the tires like you’ve mentioned. Typically vibration (shakes) are due to something that is out-of-balance. Given the tires and wheels have been balanced, it could be a wheel bearing vibration, as a worn, loose, or bad wheel bearing could cause shaking. It could also explain the noise getting louder as you accelerate.

This could also be an out-of-balance axle shaft, as worn cv joints (attached to each end of the axle shaft) typically creating a clack-clack-clack noise while turning. To get a precise diagnosis, you can get in touch with YourMechanic to inspect the noise in person and follow through with any repairs that are appropriate.

ANSWER : Hello, your symptoms suggest a coolant temperature sensor failure, or wiring problem (cut wires or other "open circuit" issues). Changing the radiator may have caused the sensor to be bumped, or the wiring for this sensor to be damaged. An open circuit for this sensor would send engine management a signal for "very cold conditions", requesting a rich fuel mixture – resulting in rough idle, and black smoke from unburned fuel. I would suggest a engine sensor inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

ANSWER : If it doesn’t run for more than about a minute, that could be a normal situation. The fan is triggered by temperature at the cylinder head, and when the engine is off and the coolant isn’t circulating, the heat rises to the top of the engine. If the car is fully warmed up and it’s a hot day outside, the fan may come on for a short time when the car is off. If it runs on and on, it may be a different matter and you will want to have it checked out.
The leak, should concern you. Left to themselves, things always go from bad to worse and it could get worse at a very inconvenient time. If you contact Your Mechanic, they can send a technician to your home or office to check out your Honda and let you know what can be done for it.

ANSWER : It is very possible that you have a valve cover gasket or spark plug tube seal leak on your vehicle. These type of leaks will allow oil to leak onto the spark plugs causing misfires. When the engine misfires due to oil getting on the spark plug, the engine oil will burn. Since oil and tires are both petroleum products, they will both smell similar when they are burning. I would recommend having an oil leak inspection performed by a qualified professional to determine if there is an oil leak. Consider YourMechanic as an Oil/Fluid leak inspection can be peformed at your home or office.