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It would appear that the vehicle has several problems that will need to be addressed separately. The radio staying on is probably caused by a switch that is not turning off all the way. This may also be related to...

Hi - GM V8 ignition control modules from 1987 to 1995 should interchange with your '91 5.7L. For assistance, I recommend a ignition control module replacement performed by a mobile, professional mechanic, such as one from YourMechanic, who will come...

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Hello, thank you for writing in. Unfortunately this is one of the components that they have hidden from us on this particular vehicle. It is best obtained from the bottom of the vehicle. It will be located above the starter,...

Hi there. This really isn't a service we offer or are best suited to give you any "good" advice on. When it comes to ECU's, we always defer to the OEM solution; due to the possibility of connectivity issues with...

Hello. Typically when you have these symptoms you want to focus on air, fuel and spark. If you already replaced the ignition coil, and know you are getting spark to the plugs, turn your attention to the fuel system. You...

The engine controls the heater control valve opening and closing as the engine is up to operating temperature. If the engine temperature is too low then the heater output will go cold or low heat output until the engine is...

It sounds like you may be having an issue with the auxilary cord itself. These cords often times fail internally causing one or more speakers to stop playing sound. I would recommend getting a new aux cord to rule out...

Hello, and thank you for writing in. Without knowing the make and model of the vehicle, it is impossible to know what kind of programming may be behind the issue. There may also be an electrical issue, but again we...

The transmissions on the Explorers had issues with the reverse and drive band servo binding in the shaft hole on the transmission case. The transmission case would need to be modified by inserting an over-sized bushing in the case, or...

Yes, definitely replace the cable. It was a design flaw on those, and as they get old, they short out internally. It happens all the time. And don't just get those cheap splice kits and put it in and done....

Fuse replacement averages $72 to $91 but you can get an exact quote if you click on "Get a Quote" at YourMechanic's fuse replacement service page. Fuses are located in a variety of spots in the car including in an...

Hi, thanks for writing in. The only way to verify if the engine is damaged is to do at least a partial inspection of the internals. The oil pan and/or valve covers should be removed to inspect the camshaft sensors,...

The most common causes of overheating include low coolant level, a faulty thermostat, a plugged radiator, a faulty radiator pressure cap, collapsed hoses, non functioning cooling fans, and a faulty water pump or drive belt. Certain engine faults, such as...

The fuel tank is designed with anti-slosh panels inside the tank when it was put together. The panels do not go over about 1/2 to 3/4 of a tank. The panels are there to make sure the fuel does not...

You would need to press the display button, then system settings, and then languages. In German, this will how you will read it. Press the Anzeigen Taste, then System Einstellungen, and then Sprachen. Now you can choose English.

Hello. The Chilton manual will be able to give you accurate information as to the location of the voltage regulator. This manual can tell you whether your voltage regulator is an internal or external part. It is not recommended that...

Hi there - yes, it is possible that the engine has "jumped time". This engine is known for timing chain stretch, and jumping time with higher mileage. If you have spark, fuel injectors spraying, and compression, this could be the...

Have the on-board diagnostic system scanned for faults to make sure there are no electronic issues causing the hard shift prior to taking any other steps. Although these transmissions are claimed to have a "lifetime fluid", it is still a...

The speedometer is calibrated to read the correct miles per hour and distance driven at the speedometer factory. Are you sure you misread the odometer to be 1.2 miles and not 12 miles? If the far right number is a...

In resolving all these issues, the first step will be to download the OBD-II trouble codes that have caused the check engine light and the ETC warning lights to set. There will likely be issues related to those codes that...

Hello, and thank you for writing in. Your head is in the right place about inspecting the vehicle and doing some research on it. While we can not advise you to buy the car or not, you should do some...

Yes you should use a good anaerobic sealer with the paper gasket applied to water pump and engine to hold and seal gasket.

Hi, the first task is to extract the problem codes which are causing the Check Engine light to flash. Most auto parts stores will do this for free. I would suspect plug wires next, and check the condition of the...