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Hi....the best thing to do is request a diagnostic based on the trouble code, P0721, that you have in hand. Resolve that first as the fault behind the trouble code may account for the shift difficulty you are having. The...

I can understand why this situation would be such a disappointment. It's never fun to drive in the heat due a broken A/C system, or have to deal with the smell of exhaust fumes while driving on the freeway in...

Hello there and thanks for writing in. Generally belts will squeak when they are loose or not aligned correctly. Occasionally, they may need to have a bit of belt dressing put on them to lubricate them. Your idle issue may...

It sounds like you have been using the wrong coolant for your engine or the transmission cooler is leaking transmission fluid into the coolant. Either way you need to replace the cracked radiator and flush out the system with clean...

I'm curious if there are any fault codes stored in the engine's computer. The mass air-flow meter or sensor is not the "EPC" sensor. If the vehicle is not running properly with the new mass air meter, there may be...

Hi there. The biggest problem with 'engine seal' liquids is that they typically create more problems than create solutions. Unfortunately, when these products are used, it's incredibly difficult to diagnose what's causing your issues without completing a physical inspection. It's...

Hi there. Air bags on modern cars are deployed not necessarily on the speed of impact, but multiple variables including location of the hit along with the g-force of the impact. It could be less than 10 mph or more....

Hello. If the powertrain control module detects that there is an increase or decrease of the crankshaft revolutions per minute that is more than 2 percent, it will store the P0301 trouble code. A percentage increase or decrease in revolutions...

There is only so much that I can tell from this desk. but you will probably be all right. P0011 usually indicates a problem with the variable camshaft timing device. In most cases the car will run without trouble. The...

Although there is some variance across engine types, minimum oil pressure at idle is typically fairly low to begin with, typically in the range of 4 to 10 PSI. If idle speed drops below normal, so will oil pressure. Gauge...

Factory tinting is on the inside of the glass. Generally, you shouldn't use any harsh chemicals on any glass or it may etch the glass and make it unclear or cloudy. If you choose to move forward with the remover,...

Hello there, thank you for asking about your 2005 Jeep Liberty. This is typically a common symptom of a failing idle air control valve, which is a unit that monitors the air intake as it is mixed with the fuel...

Hello. It is common for these lights to come on after a battery replacement. It is typically due to the fact that the system has lost voltage which causes these computers to set codes. I usually scan the computers just...

If computer testing does not show a problem then test fuel pressure to see if the fuel pump is pumping and needs replaced.

Hi there. The shaking could be the CV Shaft joints seized up or the suspension on your vehicle is loose causing the vehicle to shake in both forward and reverse directions. Tires with a bubble or out of alignment tread...

Rear sway bars are to help the rear of the vehicle to be stable when driving around turns or maneuvers and when towing another vehicle. The sway bar should not affect the vehicle when hitting bumps unless the links or...

You need to look on the dash to see if your theft light is active. The system will let you crank it a few times until it locks out the crank signal. You may need to try another key if...

Without hearing or experiencing the noise myself, it is hard to make an accurately diagnose this but GM has a TSB (technical service bulletin) that may address this concern. There are 3 possible causes from a body mount at the...

If the compression is below the minimum specified in the service manual, the mechanical (or head gasket) issue causing that will have to be resolved. Either the cylinders (2 and 4) are leaking through the head gasket, the valves or...

Motor vehicle safety inspections in almost all U.S. jurisdictions do not cover maintenance and ordinary wear and tear, including de minimus "leaks", unless the "defect" found creates an immediate, obvious, and direct impact on the safety of the vehicle or...

The side mirrors can be folded in towards the car, to help protect them, or to lower the width of the vehicle. To fold the mirrors, simply grab them and push them toward the side windows until they fold into...

The starter signal goes through the ignition switch through the clutch switch or automatic shift position sensor then it gets passed to the starter relay. The starter relay controls the starter. My recommendation is to have the system checked by...

Hello there, many different faults could cause your Infiniti EX35 to run poorly. With the coolant gauge reading hot and the lack of coolant it sounds like your car overheated. When cars overheat the computer will put them into a...

Disconnect the vent tube on the differential and blow through the tube on the differential. If you are unable to blow through it, then the differential is creating too much pressure and pushing out the oil through the tube. I...