When the 88 honda idle low i tried to adjust it and it would idle up and down until i put the car in drive and i would run for a minute and shut off. I sprayed carburetor spray around the intake because someone told me if theirs a vacuum leak it could cause the car to run like that so when i sprayed the caruretor spray around the in intake it idle up a so i tighting the intake bolts up and now it idle at 4000 to 5000 rpms and will not idle down i backed all the way off both idle screws and its still idle high can someone tell me how to fix the problem
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Hi Lasbs, Check the ignition timing and adjust with a stroboscopic timing light. The correct timing should be 10 degrees BTDC. If the vehicle is fitted with a carburetor, I believe it needs adjusting correctly, or with the Honda carb, it may be easier to replace it. If the vehicle is fuel injection carry out a diagnostic scan. Also make sure that all vacuum tubes are fitted tightly and that there are no cracks or broken joints. Regards John
The owner should locate the fuel pump first before servicing . prepare the equipment to use in servicing the the fuel pump.The owner of the car should adjust the the Idle. Start the car and check the fuel pump Idle and adjust until the car can drive when it is place into gear.the problem in the car is in the Idle, it means that there is low fuel passing to the fuel pump, that is why the car when it drives or the strength of the car is low when placed into drive. there fore adjusting the Idle until the car will drive when placed into gear is the solution.If the owner don't have time to do it then the owner of the car should go to a car mechanic to do the task or job.
I believe what you're saying is that after your car has been in park and you put it in gear to drive it makes a grinding noise for about 30 miles. I recommend checking you transmission fluid level and adding fluid as needed. You should do this fluid check while the engine is warm and car is idling. Since you have an 88 you probably have a lot of miles on it. I've had very good luck using Slick 50 High Mileage Automatic Transmission Treatment. A bottle of this costs around $15. If none of this works it may be time to take it into the shop or trade it in.
)The fact that thge engine idle fluctuates when it is cold indicates that the Fast Idle THermo Valve is out of adjustment.
This valve is located ot the front of the intake manifold on the driver's side just below the accelerator cable. To adjust it, wait until the engine is cold (best to do it first thing in the morning).
Remove the two screws holding the cover on and start the engine. There is a brass needle sticking up through a plastic ring that has two slots in it. With the engine idle fluctuating, use a thin flat blade screwdriver to SLOWLY turn the ring CLOCKWISE
until the idle stabilizes. Once done. put the cover back on withg the two screws and you should be done.