Brake fluid in the brake booster is definitely a sign of a leaking master cylinder as you know. Additionally, brake fluid in the brake booster will also cause deterioration in the diaphragm resulting in failure leading to vacuum leaks and...
When a sensor is detecting one of the wheels stopping, it will cause the brake pedal to bounce and the vehicle will stop differently than normal. The bad sensor may be causing a bad signal to the ABS module telling...
The cause for the van not starting should not be related in any way to the oil change. The only thing that may have happened could be the mechanic may have accidentally bumped a sensor or a wire. I would...
The noise will be most easily pinpointed if you have an assistant turn the wheel while you, or a mechanic, hone in on the location. There are quite a few other potential sources of the noise such as the upper...
At the age of your car, it's not unlikely that they all need changing. With the dog, bone mount, it's easy to diagnose it because it's up there where you can see it any any changes are visible. But to...
Hello there, thank you for asking about your 1987 Oldsmobile Cutlass Calais. A common problem that can cause stalling is a stuck torque converter clutch. This device connects the link between the engine and transmission, but should slip some when...
Hi and thanks for contacting YourMechanic. This sounds like the front differential has medal particles in the gear assembly, and if so, you will have to remove the differential and have it diagnosed from the inside to see what bearing...
First you will need to verify the fluid is full and then retest it. If it still does not move then you may have bad internal transmission clutches and clutch bands and would require overhaul or replacement transmission.
Hi Tim. Thanks for sending your question to us today. There could be a few different issues causing this problem, ranging from a damaged shift solenoid to an obstruction of debris inside the transmission hydraulic lines. A blown inner seal...
Hi. Since the reverse lights turn on when you shift into gear, that is a clear indication that the mechanical portion of the shift linkage is working. I believe the shift solenoid inside the transmission might be stuck open or...
Hi there. First check the air filter on the engine. A dirty air filter will starve a diesel engine and prevent it from running correctly. Then check the fuel / water separator and see if there is a drain valve....
Hi, this comes up often on this vehicle. The most common cause of it is the plastic steering column cover. They warp and hit the steering wheel and cause this noise. A mechanic will typically remove the covers to see...
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...
I would recommend first making sure that an exhaust heat shield is not the issue. This can be done by having a professional get under your vehicle and check for any loose parts on your exhaust system. Replace any faulty...
Diagnostic Trouble Codes, such as the two codes that were retrieved at the first shop, cannot be used to "directly" condemn parts. Rather, these Codes are merely clues that are used to inform an actual diagnostic. But, short of an...
Hello. It could be possible that the steering gear or power steering pump have seized and are no longer functioning. In most cases of pump failure, the steering will still turn, however it will require increased effort due to the...
Remove the negative battery cable from the battery. Get a digital meter and check the voltage from the battery terminal and the battery cable without having the cable touching the terminal. If there is something on in the vehicle with...
Hello. This engine typically overheats from a failing thermostat or possibly a more serious issue. I would typically start by checking the coolant level and running the engine until it gets hot. I would then make sure that the fan...
The cooling fans work according to relays that detect temperature and cause them to turn off and on. When these relays are not working properly, this will cause them to come on all the time, not at all or intermittently....
The noise you hear is the power steering pump whining from lack of fluid. The leaking fluid is most likely the pressure line leaking fluid and would need to be replaced. The power steering pump may have to be replaced...
The ABS and Brake light on will store a code in memory. You need to have the stored codes cleared and then road test to verify the codes return and diagnose the codes. You may have a bad speed sensor...
This sounds like it is something that is within your skills ability. I can't speak to your skills for certain without knowing what kind of repairs you have done in the past though. As far as oil pan gasket replacement...
