Popular questions

Question
altinater is fine but battery light keeps coming on what could be the problem? came on 7 times while on the road
The battery should be load tested by a professional. Load testing can only be reliably performed on a fully charged battery. If the battery passes a load test be sure it is NOT a marginal pass in which case you...
Question
Car overheating after new water pump
Hello. It sounds like you may have a couple of issues going on with your vehicle. The overheating is the first concern. If it is randomly overheating then a block test needs to be done. This would indicate a leak...
Question
Car computer gave me a P0441 code.
A code P0441 could mean one or more of the following has happened: Bad vacuum switch broken or damaged EVAP line or canister open in PCM purge command circuit open or short in Voltage feed circuit to Purge Solenoid faulty...
Question
My third gear is grinding
This may suggest failing synchros. As you may know, when a clutch drags, it is not letting go of the disk fully which overloads the synchros and burns up the friction surfaces quickly. Synchros work by speeding up or slowing...
Question
Car doesn't always start right away
Hello. There could be a few issues causing a crank no start condition. You could have a sensor that is failing when it gets hot like the crank or camshaft sensor. A failing ECT sensor can also cause a crank...
Question
2002 grand am starts but then immediately starting vibrating in any gear except neutral. dies as soon as I hit the accelerator
This may be related to a few different things such as a faulty idle air control valve, low fuel pressure, or potentially an intake air leak creating a lean fuel condition. The idle air control valve monitors the air intake...
Question
Multiple problems with my car.
I suggest you leave this extensive list of issues to a professional technician, such as the ones at YourMechanic for repair. These problems are likely unrelated and will require individual attention. The dash lights and horn are probably issues with...
Question
Truck bogs out under load
First, the EGR tube rusted away will cause excessive air to get into the exhaust and cause the O2 sensors to read erratic. The main reason you most likely have a mass air sensor that is not reading correctly for...
Question
My brakes are hard when depressed.
Hey there, thanks for writing in. The brake booster has a bad vacuum supply or the booster internal vacuum valve is bad and the booster needs replaced. The complete brake system should be checked and diagnosed by a mechanic to...
Question
Engine idle fluctuates
This may be a sign of a vacuum leak. A vacuum leak can be one of the most frustrating and difficult problems to diagnose. High idle speed is a common sign and stalling is another. Confirmation of an engine vacuum...
Question
What does the automatic transaxle shift indicator mean?
The automatic transaxle shift indicator is located on your instrument panel. This indicator illuminates when the automatic transaxle shift position has been selected.
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Why doesn't my door open from the outside?
To determine what exactly has failed, it will be necessary to remove the inner door panel and look to see what part(s) have actually failed. The most common failures, when an outer door handle quits working, is a broken door...
Question
Car clicking and not starting
Low voltage is one of the main causes for a starter solenoid to click continuously without turning the engine over. An electromagnet pulls the contacts together in the solenoid. As soon as contact is made and the starter motor is...
Question
My car keeps running hot then it cools down
Hi, thanks for writing in. There are two possibilities here: either the physical temperature of the engine is indeed fluctuating significantly, or the sensor and/or circuit that feeds the temperature gauge is malfunctioning. The sensor (and circuit) can be tested...
Question
Horn doesn't work
It seems you have three issues. Any issue with a seat belt will require it to be replaced (e.g., frayed webbing, inability to retract or buckle, etc.) It's too risky to attempt repairs with something that important. The broken horn...
Question
Car is making weird nose from the front end
Hello there, the loose steering and brake pedal vibration can be caused by a few different items and may be related. The most common causes of the loose steering and noise is the power steering pump failing or air in...
Question
TPS
Insert the replacement throttle position sensor (TPS) and check with the computer scan to see if it is working correctly and adjusted properly. You may need to relearn throttle position and idle for your vehicle. If you'd like, a certified...
Question
p0420
A vehicle with 182,000 miles is likely due for a catalytic converter. Most of the time it does mean you need a new catalytic converter. But there are a couple of other things that are prudent to take a look...
Question
Jeep 2014 Patriot Throttle Body
Hello. Diagnosisng the issue from here will take some trial and error. You should look into having the mass airflow senor checked. This sensor is responsible for telling the computer how much airflow is coming into the engine. The codes...
Question
Warning lights come on while driving
Hello. It is possible that the oil pump is faulty causing low oil pressure. This may prevent the engine from working properly. It is also possible that the head gasket has failed or an internal engine component has failed (burned...
Question
2007 Infiniti fx35 starts runs fine in park or idle. Overheats when driving, cools in park/neutral. Oil/coolant fine, not milky
The best way to determine the exact cause of this issue would be to have your vehicle inspected by a qualified professional for cooling system faults. It is possible that the radiator fans are not working properly or other parts...
Question
Erratic Idle
Hello! It sounds like you may have a dirty or faulty idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds...
Question
Bumpy ride at high speeds
Hi. If the car has a wobble to it at high speeds it may be a that the wheels are not balanced. Also it can be because of a damaged wheel bearing. A mechanic can take it for a test...
Question
Car struggles to start. Won't turn over.
You should have a technician look at the car to determine if it is an electrical or a fuel problem. You will need to remove the spark plug and get a spark plug tool to test for spark when you...
Question
The Check Engine Light came on, I hooked it up to my scanner and got the code P0308 (cylinder #8 misfire).
An easy way to isolate if the ignition coil is the problem is to swap the #8 coil with another cylinder. Swap the #8 coil with the coil from the adjacent cylinder, then clear the codes. If the code remains...