What is code p1077?
The p1077 code for Honda CR-V indicates that the intake manifold runner control system (IMRC) is at a low rpm and has malfunctioned. The IMRC controls the opening and closing of butterfly valves inside of the intake manifold runners.
What can a bad intake manifold runner control cause?
What can a bad intake manifold runner control cause? If the intake manifold runner control has an issue it can cause the vehicle to experience engine performance issues such as misfires, a decrease in power and acceleration, a decrease in fuel efficiency, and even stalling.
What is a manifold runner control?
The Intake Manifold Runner Control (IMRC) is an electrically actuated system consisting of a motorized actuator with an attaching linkage for each housing on each bank. The system is designed to give the engine the best characteristics over its operating rpm range by combining two intake manifolds in one.
Can I drive with a bad intake manifold?
Generally a really bad intake manifold gasket will make a car run rough at idle and/or cause a service engine light to illuminate. As far as driving the car, as long as you don’t have a fluid leak or the car is not stalling or running rough, it should be fine to drive for a few months.
How do you check for a cracked intake manifold?
Pressure testing is probably the best way to check a plastic intake manifold for leaks when the manifold is off the engine. Penetrating dye can also work. An ultraviolet dye will make cracks easier to see on a black plastic manifold than a colored dye.
What are the symptoms of a cracked manifold?
What Are the Symptoms of a Damaged Exhaust Manifold?
- Burning Smells. An unpleasant smell of burning plastic or rubber may greet you upon lifting your hood after a drive around the block.
- Performance Problems.
- High Fuel Use.
- Loud Exhaust Noise.
- Visible Damage.
How much does it cost to fix a cracked manifold?
The number for an exhaust manifold repair cost is an average of between $570- $900, with the labor taking up the majority of this price at between $400 and $550 of that, and the ports running you between $130 and $340 for the total cracked exhaust manifold repair cost.
Can you drive a car with a cracked manifold?
Leaking into the exhaust manifold will not stop you from driving your vehicle. However, the leak can cause significant engine troubles in the short run. If you have some mechanical experience, you can fix the exhaust manifold leak on your own and save the labor cost.
What causes a manifold to crack?
The exhaust manifold is exposed to the extremes – it’s heating and cooling, which causes constant expansion and contraction. Manifolds can crack over time due to the stress from constant, extreme temperature changes.
What is the best exhaust manifold gasket sealer?
Permatex Ultra Copper Maximum Temperature RTV Silicone Gasket Maker is the most advanced, high temp RTV silicone gasket available.