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1990

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Question
My sport mode is turning off and on and the transmission is shifting in and out of sport mode when I drive.
Hi there. Behind the right hand corner of the dash on the passenger's side, just below the glove compartment, you will find 2 connectors taped to the wire harness with blue tape, unless someone previously removed the tape. One is...
Question
Engine clicking and shaking
Hello, thank you for writing in. Due to the timing being relatable to the oil change, you will want to start by double checking the repair. Make sure your oil filter was installed correctly and is allowing the oil to...
Question
Need some help with what headers to get and where they go?
Hi there. Headers are designed to take the place of the exhaust manifolds on your engine. Heaters are mounted on the cylinder head and connected to the exhaust pipe. Now, if your vehicle has exhaust manifolds and you want to...
Question
Jutters when giving little gas and letting go
There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially...
Question
Stalling when I move rear driveshaft.
Hi there. Anytime your vehicle is stalling when turning the driveshaft by hand, then there is a ground issue with your vehicle. Also, there could be an issue with the output shaft speed sensor (OSS) on the tail shaft on...
Question
Coolant coming out of my air intake
I think the most likely cause of this issue would be a blown intake manifold gasket. I would recommend having your engine smoke tested to determine if any smoke comes out of the place you believe the coolant is leaking....
Question
I have a 1990 Jeep Cherokee with some weird stalling issues.
Hi there. Seems that the troubleshooting is leading to the transmission. When the vehicle goes into drive or reverse, if the transmission is lock up or the converter clutch is active, the engine will stall. When tapping on or turning...
Question
Running lights don't work but brake light reverse and hazard work
You will need to first check the tail lamps fuse in the fuse box is not blown and is getting power all the time on both sides of the fuse and the connections are tight on the fuse. If you...
Question
Should I try to salvage my car that has a knocking noise do to insufficient supply of oil or do I just buy a new car?
Hello, thank you for writing in. With the issues you are having, the problem may be more serious then the car is worth. You will want to consider all of the potential costs to have it fixed. This may require...
Question
I am Having to replace distributor rotor to soon in my SL300 Mercedes. I just got a bad one fro apw.
It is possible that some sort of moisture could be getting inside the distributor causing the rotor to corrode. I would examine all surfaces that come in contact with the distrubutor rotor to determine if a proper connection is being...
Question
Okay so when I turn my lights on at night my brake lights do not work, when I don't have my lights on they work fine.
Hi there. Based on your inquiry, it's highly probable that you have a damaged light switch or some electrical fault inside the turn signal relay. However, it's also possible that the brake switch above the brake pedal could also be...
Question
4Runner has no power in the engine.
Check the engine for a vacuum leak and see if the valve on the brake booster is leaking. Also check the EGR (Exhaust Gas Recirculation) is stuck on all the time. A vacuum leak or the EGR being stuck on...
Question
Need to know if my clutch is out or if it is a problem with my transmission.
The issue seems to be the clutch. When the clutch is engaged and the vehicle is throttled, a slipping motion is occurring all the time. With the clutch pressure plate being worn will contribute to a slipping clutch. When the...
Question
Why does my truck wander when driving down the street 1990 GMC C2500
Hello. You need to start by having the bushings in the control arms checked. If the bushings are cracked or stretched then this will occur. If the bushings are fine then you may have an issue with the pitman arm...
Question
The car will not crank but makes a light clicking noise.
When you hear a clicking under the hood instead of the starter, I immediately think of the battery voltage. It could be that the charging system is not working and you drove the car until the battery voltage dropped off....
Question
The car has been sitting up for 15yr and jerks very hard after switching gears. It takes 30min to go 20mph.
This is often a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission...
Question
my car was at a stop light, started to chug as if it were running out of gas, then died and wouldn't start.
Any number of things could have occurred. On the outside chance, it could be another failed fuel pump. Unusual but it has happened. If it is not getting fuel, it could be components like a failed fuel pressure regulator or...
Question
What could be wrong with my truck?
When you have a vehicle that is 27 years old it can be most anything causing the vehicle to hesitate. Depending on the engine you have you may have a sensor issue that is not working correct or a fuel...
Question
I have a 1990 Chevy 4x4 short wheel base step side with an automatic transmission.
If the front drive shaft is spinning and not able to be engaged, then the chain in the transfer case could be broken. For the transmission to be in neutral in all the gears, but lock up in the park...
Question
Battery ?
On some car alarm systems, if battery voltage drops below a threshold, the alarm goes off. In your circumstance, you should have the battery load tested to rule the battery in or out as a possible cause. The security system...

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