How to fix engine idle problems in your car?
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What causes a car to have a high idle?
At this point in time it doesn’t hurt to give it a shot though. Make sure you do not have a busted diaphram inside the brake booster. This could cause a high idle also. Infact, any vacuum leak could cause a high idle. I had the same problem with a new Holley. i had a major vacuum leak as discussed above.
Why does my 350 carb.not idle down?
The carb. won’t idle down because air is being suck into the intake man. some where. Also get a new thermostat housing without any of those vac. ports. Those vac. ports operated the heat thing that let heat into the air filter housing. If it were me I would shag as much vac. hose as possible. Check the hose going to the booster also.
Why is my idle on my 65 Mustang?
The owner of the 65 mustang also had a 1406, but his idle goes down after warming up, my idle doesn’t even do that. It remains high no matter way I do…. At this point in time it doesn’t hurt to give it a shot though. Make sure you do not have a busted diaphram inside the brake booster. This could cause a high idle also.
What to do when your car is at high idle?
While observing the valve with a flashlight, turn the key to the “ON” position, (DO NOT START ENGINE.) the valve should move slightly. Step 3 – Engine vacuum is a sealed system and must hold a specific amount to maintain proper idle conditions, inspect the engine vacuum hoses and intake gaskets.
Why does my car not start when idle?
Low engine compression caused by worn piston rings, cylinders and leaking valves. Faulty coolant and/or air temperature sensors gives your engine computer incorrect information resulting in improper air/fuel mixture.
The carb. won’t idle down because air is being suck into the intake man. some where. Also get a new thermostat housing without any of those vac. ports. Those vac. ports operated the heat thing that let heat into the air filter housing. If it were me I would shag as much vac. hose as possible. Check the hose going to the booster also.
How can I check the idle air control?
To perform a rough check of the idle air control, remove the valve while reconnecting the wiring harness. While observing the valve with a flashlight, turn the key to the “ON” position, (DO NOT START ENGINE.) the valve should move slightly.