Start with checking the engine coolant level. If it is low, you have a leak. If the level is normal, the problem could be with the thermostat. If the thermostat isn't opening, coolant won't circulate. If it is opening, the...
As you may know, his code is related to a lean fuel condition which is normally related to many of the items you have listed. I would recommend checking the injector pulses to be sure they are providing enough fuel...
Hi there, thanks for writing in about your 1991 Acura Legend. I would start by verifying that you are connecting the correct terminals and that you have continuity (i.e., the clip is actually contacting the terminals well). If so, and...
Hi there, thanks for writing in about your 2006 BMW 750Li. The two causes of an engine to burn oil are faulty piston rings and faulty valve guides or seals. If the piston rings are faulty, this will allow oil...
Hi. This issue can be one of many things. From detonation occurring in your engine, a timing belt needing to be replaced, a faulted catalytic converter, or an issue with fuel that is in your vehicle. More information about when...
This may be due to a bad heater core. As you may know, the heater core is a small radiator like unit that circulates the hot coolant from the engine through the heater core which then uses this warm coolant...
Hello. From what you describe it would appear that your vehicle may be experiencing more than one issue. If the engine is stalling and jerking when you put it into gear then it may be possible that there is an...
Hi there. Rattling noises can be caused by very many things. The noise needs to be isolated to determine whether the noise is internal (inside the engine or transmission) or external (an accessory component, e.g., A/C compressor, water pump, alternator,...
This may suggest that the control arms themselves may be bent or not properly aligned when installed. As you know, the control arm is designed to bend and flex according to road conditions and the way the driver controls the...
There are two components to the repair cost: 1) the cost to diagnose the issue(s); and 2) the actual repair cost once the fault(s) is pinpointed. The former cost is fixed and you can obtain it by referring to YourMechanic's...
Hi there. If the lifters are indeed tapping, then they are probably sticking. Try putting one quart of transmission fluid in the engine and run the engine for 15 minutes at 3,000 rpm. This will thin out the original oil...
There are many potential causes for engine overheating, a failed water pump being one of them. Allowing your engine to overheat even once can result in catastrophic engine damage. It sounds like this is what may have happened to your...
The automatic transmission in most vehicles are designed to shift the gears for us rather than use a manual transmission and a clutch with a stick shift to change gears. If you have driven a manual transmission before then you...
The steering wheel gets tight because there is no power steering without the engine running. You brake concern is similar. The brake booster, which provides braking assist, requires engine manifold vacuum to operate. Without the engine running, your brake booster...
You need to open the hood and with a/c on and engine running see if the cooling fans are coming on. If not then system will need additional diagnosis to see if fan motors are bad or the control system...
Overheating can be caused by a number of things. Usually when you start noticing the temperature go up it is because there is not enough coolant in the system to cool the engine down. As the temperature goes up, much...
If the items share a common ground or power circuit, there could be a loose connection or a bit of corrosion in the shared circuits in the steering column. The cross contact from corrosion growing across circuits can cause similar...
This light will usually come on when one of two things are happening. Either the motor is in fact low on oil or the oil pressure sending unit is not working properly and may be producing a faulty reading. I...
Hi Robert. Thanks for writing in today. Although it's vital to change belts and hoses on a regular interval (as they are designed to wear), there is no recommended replacement for a timing chain. In theory, the timing chain should...
I would recommend having your vacuum levels checked with a vacuum gauge. This can be done by removing the vacuum hose from the brake booster and inserting the hose of a vacuum gauge. This will tell you if the engines...
Your vehicle's fuel supply system does have a fuel filter but that filter is built into the fuel pump which is installed in the gas tank. Should you desire service on the filter please use YourMechanic's fuel filter replacement service...
Hi - this problem sounds a bit more challenging as you have done all the logical things - well done! Remaining possibilities include coolant leaking into the exhaust (cracked cylinder head) which would give you white smoke with a sweet...
Hello - I would focus on the transmission issue first. If you have the transmission fluid back to its proper level, check for problem codes, whether the Check Engine light is lit or not. An auto parts store will read...
The engine computer will lose certain stored "adaptive" data when you disconnect the battery but that would not result in any significant "reduced power". This could be an electrical issue and it may also be that there were co-existing "engine...
The AC system is a sealed system, so you are correct to believe your Cadillac may have a leaky AC if you are experiencing a problem. The more common leaks are usually found right behind the front grill where the...
