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Corrosion

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Undercoat to prevent rust
Anything to cut off or slow the corrosion will help but may also cover damage from existing damage. The cost of undercoating is up to you, but it may not be worth it depending on how much you are being...
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Alt and Bat duplicate request
It is not normal for the battery and alternator to go bad in such a short time unless there is a problem in the wiring connections or harness connections. You will need to have the system checked to isolate the...
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Will the under body parts get corroded? 2003 Ford F-150
Hello. It all depends on the part that is corroded. The frame can take some corrosion before it will cause a problem. Most other parts would need to be looked at on an individual basis. The brake lines are the...
Question
Car has sulfated battery - 2006 Mercury Milan
Hello. The battery and battery cables need to be evaluated at this point. Check the two terminals. If corrosion has begun on one area, the other areas around there will likely follow. If the tips of the battery cables are...
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White plugs due to lean conditions in cumbustion chamber
You should have your fuel injectors and combustion chamber cleaned. The valves may have carbon built up on them and will cause lean conditions. Also dirty clogged injectors can cause lean conditions as well. Lastly, I recommend checking the fuel...
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seems to be stuck in 2nd or 1st cant tell
Here are a few things to check next: With a fully charged battery, test the voltage on the ERLS fuse, Key On Engine Off (KOEO) and the transmission connector connected. If the voltage is low at the...
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Air conditioner
When you wiggle the green wire, it allows power to get to the blower motor. You should disconnect the connector for the resistor and blower motor and check the connector for signs of overheating, rust, or corrosion. Repair or...
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Engine, power steering, and brakes shut off
Given you had a "sudden" failure, you might check the crank position sensor first. This component instructs the ignition module when to fire the spark plugs. If the crank position sensor is OK, work your way up the electrical path....
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Cruise control quit working on 1997 Lincoln Mark VIII
Hello. Thanks for writing in about your 1998 Lincoln Mark VIII. There is a recall for the cruise control malfunction of your vehicle. The Recall is number 69179. The recall seems to point to a faulty cruise control module. Give...
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Starter? Battery connection? Something else?
Hi, thanks for writing in. Based on your situation, I would say your starter is fine, but your battery is bad. Cold Cranking Amps (CCAs) are what you use to start your car. They cannot be tested and they can't...
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My vehicle won't start
Hello. I would recommend first disconnecting and cleaning the battery clamps and battery with baking soda and water. Once the terminals are clean then see if it will crank over. You may need to jump start the battery if it...
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Leak caused by corrosion on throttle body terminal
Hello. There are some fairly sensitive electronics inside the throttle position sensor (TPS) housing. They are also not engineered to be easily disassembled for repair either. Unless you are quite experienced at unsoldering and soldering printed circuit board connections, I...
Question
Loud buzzing before the engine cranks
This sounds like the starter solenoid - the part of the starter assembly which acts as a high-current power relay for the starter motor - has worn or burned contacts. This makes it tougher to get adequate power to the...
Question
Fuse or bad battery?
Hi, thanks for writing in. The AC blower motor or relay may be bad and would need to be checked. The radio you may have a blown fuse or a problem with the radio itself. If you would like help,...
Question
Dead battery
You need to check to see if the corrosion is causing a no connection from the battery to the main power supply. The corroded cable may need to be replaced.
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My car won't start but does make noise
Hello there, many common faults will cause your 2008 Toyota Yaris to crank but not start. The most likely is the battery, fuel pump, battery terminals, starter, battery cables, ignition switch, or a wiring harness fault. A qualified Technician such...
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Starting issue, 1991 Saab 9000
Typically, when this type of problem occurs, the most common causes are either a bad battery, or a poor connection. If the vehicle starts and runs normally after being jumped, this is usually a sign that there may be enough...
Question
Brake fuel lines are corroded and the car seems to be leaking gas
Brake lines are under very high pressure when your foot is on the pedal measured in the hundreds of pounds of pressure per square inch. Fuel supply lines are under pressure as well, around 40-65 PSI. The first concern is...
Question
My van will not start, what should I check?
Typically when I troubleshoot a starting issue, I'll begin by testing the battery for cranking amps, inspect the battery terminals for damage or corrosion, then proceed to the starter solenoid if the vehicle is not cranking over. If you've inspected...
Question
My car has an electrical failure due to rain leaking inside, what do I need to repair?
This could end up being a costly repair unless the pigtail replacements for the wiring harness are available. First, the water intrusion has to be repaired. The water has to have been leaking inside the vehicle for some time or...

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