To check the MIL (Malfunction Indicator Lamp) codes on a 1990 GMC Suburban, you can use an OBD-I scanner or a paperclip for a manual method. Locate the diagnostic connector under the dash near the driver's side. Use a paperclip to short terminals A and B on the connector, then turn the ignition to the "On" position without starting the engine. The check engine light will flash a series of codes that indicate any trouble codes stored in the vehicle's computer.
very carefully
To reset the check engine light on a 2005 GMC Suburban, you can disconnect the battery by removing the negative cable for about 15 minutes. This will clear the error codes from the computer's memory. Alternatively, you can use an OBD-II scanner to read and clear the codes directly. Always make sure to address the underlying issue that triggered the light before resetting it.
Yes it will, I own a 1990 GMC Suburban 2500 (3/4 ton) and it came from the factory with a 454 motor.
Disconnect the Battery. Negative prefered. Wait a couple minutes and reconnect. This will clear codes on 1994 and older. If the light comes back on, check the trouble codes and a repair may be needed.
A tension pulley from a 1990 GMC Suburban with a 454 engine may not fit a 1993 GMC Suburban with the same engine due to potential differences in design or mounting points introduced in the later model. It's important to check the specific part numbers and compatibility, as manufacturers may have made changes in the pulleys or accessory belts between those model years. Consulting a parts catalog or a mechanic with experience on these models is advisable for a definitive answer.
You need to have it checked for codes to know what the cause of the code is.
Just follow the top hose, from the radiator, to the engine block. It will be at the end, on the engine block
If your 97 GMC Suburban won't start when it is hot outside, check the distributor cap to ensure it is clean. You should also ensure it has plenty of coolant.
You can disconnect the battery for about 5 minutes and this will clear the check engine codes stored in the computer. If the problem that caused the code has not been repaired the check engine code will just happen again. The only way to get the check engine light to not be on is to repair the problem then clear the codes.
autozone.com, then repair information...you're then able to select your vehicle's make and model.
this might help you: http://www.justanswer.com/questions/194b5-1987-gmc-suburban-4x4
Check your radiator hose