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1991

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Question
Does my 1991 toyota Camry actually have an intake air temperature sensor and if not why do I only get that code?
Check inside the air filter housing and if it is not there then it is built into the mass air sensor on this model.
Question
What is this part
Hi Tyler. It's very difficult to determine a part name without seeing it. Unfortunately, since we can't have images attached through this platform, it's also hard for us to review it. One thing you could do perhaps is to take...
Question
Vehicle not starting.
This truck came with a three different size engines. The most common reasons for no starts are the engine timing belt is broken. The fuel pump is not pumping and would need replacement. A qualified mechanic would be able to...
Question
speedometer not working
The vehicle would need to be lifted and the cable checked to see if it is turning. If it is, then the speedometer is bad. If the cable does not turn, then disconnect it from the transmission and see if...
Question
RPMs fluctuating
This sounds like there could possibly be a vacuum leak somewhere. My other guess is that the new idle air control valve may also be malfunctioning. If you switched out some parts lately, getting new car parts that are bad...
Question
Overheating problem
Hello there, thank you for asking about your 1991 Oldsmobile Cutlass Calais. With the other items replaced and a continued overheating situation, you may want to consider replacing the coolant water pump. Any time a vehicle overheats, it is a...
Question
Oil steam exhaust pipe
Hello there, thank you for asking about your 1991 Geo Storm. After your comment about flooding the parking lot with steam, this symptom leads me to believe you may have a failed head gasket. A failure in this seal will...
Question
Odometer not working.
If the speedometer is working correctly and only the odometer is on the fritz, the problem is likely a mechanical failure of the odometer. To fix this the entire instrument cluster would likely require replacement. A trained technician, such as...
Question
o2 sensor
If you are referring to 1991 model years of the Accord versus the Civic, the principal difference is the Accord used a heated oxygen sensor while the Civic did not. To compare and contrast Toyota sensors, I would need a...
Question
My car will crank but will not start.
Hi there. If your engine was running just fine and then after sitting for 15 minutes and then all of a sudden the engine will not start up but it cranks, then there could be an issue with the igniter...
Question
my car turns over but won't start
Check fuses for fuel pump, ignition,etc. If they're good, check for actual spark and fuel pressure at the engine. If you don't have both spark and fuel, it will not start. If you have no fuel pressure, then a failed...
Question
Major oil leak
You may have an oil filter seal leaking and should check the filter to see if it is loose or leaking. If the filter is not leaking then the front crankcase seal is leaking and will need to have a...
Question
Engine/battery light on
If the Engine and Battery Light have come on, then you probably have two separate problems. The Battery Light may indicate that the system's voltage may have dropped too low, which may be indicative of even more problems, such as...
Question
engine rattling noise
Claimed by John Hege
Question
Engine problems
Hi Victor. Thanks for sending your question and posting the videos. It sounds as if you've got a rather serious engine knock, likely a damaged intake valve lifter or rocker arms that are loose. Usually, this type of damage occurs...
Question
Engine noise
There is a few tests that should be done for the engine noise and the first is to find out what cylinder is not working and doing a compression test to see if the noise is a stuck open valve...
Question
Car wont start or crank
If the starter is not functioning, the electrical fault could be in any component, or wiring segment, in the starter circuit. No one component is any more likely than another and thus the standard practice is to simply trace the...
Question
Car won't turn over or start
You likely have an ignition switch problem, which is common with your vehicle. You could also have a starter relay problem, which could cause the same issue. The only way to verify the problem is to have an in-person inspection....
Question
Car won't start
Hello. If you are able to "turn over" the engine (using, say, the starter motor) but the distributor rotor is stationary, that means the gear on the distributor shaft is sheared off. However, you are also indicating that the battery...
Question
Car starts but will not run
You should not replace any parts, at all, unless the part is diagnosed as not functioning. ECU's rarely fail (fully 50% of warranty returns on ECU's have absolutely nothing wrong with them). If there is a spark at the plug...

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