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The first thing to do is to verify there are no vacuum leaks in the engine and verify the installation of the parts. Once this is done then disconnect the battery and then let sit for two minutes and reconnect...

The "clunk" indicates there is a loose coupling somewhere is the driveline. As you diagnosed, u-joints and the differential are the most likely fault points, but this could also be harsh engagement of the transmission due to worn clutches, clutch...

From all the detailed description you provided me, I have been able to narrow down the problem with your Jeep to a failure with the PCM (Powertrain Control Module). It is the computer that controls the engine, as well as...

The symptoms you describe for your Oldsmobile Alero lead me to believe you may have a vacuum leak. It is very possible that one of your vacuum lines is starting to fail and this can duplicate a transmission slipping out...

Hello. The codes listed are indicative of lean conditions on both banks A and B, as well as issues with the camshaft position sensor for circuit B. A lean condition at both banks can be caused by many things. A...

Hello. From what you describe it would appear that the carburetor may need to be tuned or adjusted. Every engine runs differently, so in most cases, when a new or different carburetor is installed on an engine it will need...

Stop leak products will plug up cooling passageways, particularly in the radiator, and consequently OEM manufacturers such as Honda discourage use of these products. In any vehicle, if there is a "leak", of anything (oil, refrigerant, coolant, etc.) the leak...

The Check Gauge Light comes on to prompt you to look at one of the gauges that is high, such as the coolant gauge for the engine overheating. If the A/C has stopped cooling, then you may have a cooling...

When the check engine light comes on, it means that the Electronic Control Unit has detected a fault in the system. If the light is flashing, it means that continuing to drive the car could damage the catalyst. It also...

Short of a vacuum leak, this seems to indicate to a dirty or failing idle air control valve. As you know, the idle air control valve monitors the air intake as it is mixed with fuel prior to being injected...

Hello There, I believe you are correct in that you may have a faulty throttle position sensor. There are trouble codes that are typically associated with the TPS. One code will set if the TPS voltage is too high when...

In order of priority, if you have a cracked exhaust manifold (leaking carbon monoxide), that actually has to be fixed first or at least coincident with the repair(s) to the engine/transmission. The principal danger from exhaust leaks (carbon monoxide) is...

Engine misfires can be caused by many different problems, but there are a few suspects that occur more than others. Generally, misfires are caused by either a spark or fuel issue or in cases, a combination of both. Spark related...

Hi there. In most cases, the OBD-II error code P0236 indicates that the turbo boost pressure sensor A is slower to respond to changing pressure due to deterioration with age. When the boost pressure sensor can't catch up to the...

Hello. Depending on which wiring harness it is, the source of the power needs to be checked. A continuity check of the wires also needs to be done to make sure there is no break in the harness. Electrical problems...

This may be also related potentially to a blown head gasket. If this is the case you will be losing coolant consistently and the car will overheat. You may also notice traces of white smoke coming from the exhaust. I...

Hi there. To properly repair your vehicle you need to use the correct ignition coil. If you do not use the right coil then it either will not work or it can damage the circuit and the computer. The resistance...

There are a number of things that may cause low fuel pressure such as a weak fuel pump, clogged fuel lines, clogged fuel filter or a bad fuel pressure regulator. This can happen when the pump itself is not working...

I have seen this before. It is not a very common issue but it does happen. Behind your dashboard there is a radiator like part that circulates refrigerant into your vehicle. The air blows through this radiator like part called...

It could be the CV axle, but it could also be a rock stuck in between dust shield of the brakes, the brakes could be metal-to-metal, or a wheel bearing could be bad. The CV axle is actually the least...

Try cleaning the mass air flow sensor as these sometimes get dirty which can cause it to not run well or at all in some cases. Without additional detail as to what else has been changed, it is tough to...

Hello, it sounds like you have already had the battery tested and it tested good. The next thing that needs to be checked is to see if the starter is turning the motor over. If it is then you need...

You must be a very good driver, because it's a 12-year-old Subaru and those are fast, little cars. Normally, those clutches are going to wear out a long time before that. It could easily be a throw-out bearing. If...

The lights that you have on and the vehicle going into fail safe mode is an indication you have a major system failure that will require computer to be tested for codes first. There are many possible codes it can...