For owners and enthusiasts of the classic 1985 Lincoln Town Car, understanding the nuances of its systems is key to maintaining its smooth operation and iconic status. When it comes to vacuum-operated components in these vehicles, solenoids often come into question. Are they a frequent source of problems, or is their reputation sometimes overstated? Let’s delve into the solenoid system of your 1985 Lincoln Town Car and explore how to keep these crucial 1985 Lincoln Town Car Parts in top condition.
Often, the solenoids themselves are not the primary culprit when issues arise within the vacuum system. The more common problem lies in the plastic vacuum lines that connect these components. Over time, these plastic lines can become brittle, crack, and leak, leading to a variety of performance issues. Fortunately, replacing these aged plastic lines is a straightforward DIY task. Switching to durable rubber lines, often in a 5/32″ size, provides a robust and reliable fix. To simplify future maintenance, consider color-coding each line using heat shrink tubing or colored zip ties to match the original configuration. This simple step can save considerable time and frustration when working on your 1985 lincoln town car parts vacuum system.
Several solenoids play specific roles in the 1985 Lincoln Town Car’s engine and emissions control systems:
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Throttle Kicker Solenoid: This solenoid is designed to momentarily increase the engine idle speed when the air conditioning is engaged. It is not active during normal driving conditions without the AC running.
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Heat Control Solenoid: This vacuum solenoid manages a flapper valve located on the driver’s side exhaust manifold. When the engine is cold, this valve restricts exhaust flow on that side, forcing hot exhaust gases through the crossover passage in the intake manifold. This aids in faster engine warm-up, particularly in colder climates.
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EGR Vacuum Regulator (EVR) Solenoid: Often referred to as the EGR solenoid, the EVR is typically situated on the passenger side fender, alongside other thermactor-related solenoids. These include the Thermactor Air Bypass and Thermactor Air Diverter solenoids, all working in concert for emissions control.
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Canister Purge (CANP) Solenoid: This solenoid regulates the vapor canister purge system. It controls a vacuum valve, often found near the battery and AC compressor, which manages the flow of fuel vapors from the charcoal canister into the engine to be burned.
While these solenoids are essential 1985 lincoln town car parts, they are generally reliable. Unless you suspect a specific solenoid is leaking or malfunctioning, it’s often best to leave them undisturbed, focusing instead on the condition of the vacuum lines. Vacuum leaks, wherever they occur in the system, can significantly disrupt the performance of the Central Fuel Injection (CFI) system used in the 1985 Lincoln Town Car.
Another critical factor, often overlooked but vital for proper engine operation, is the timing chain. The 1985 engines utilized a plastic gear on the camshaft, which is known to wear down and develop excessive slack over time. A worn timing chain can negatively impact injector and ignition timing, leading to poor engine performance. In severe cases, a jumped timing chain can cause serious engine damage, including bent valves. Therefore, before investing heavily in troubleshooting other potential issues, it’s crucial to ensure the timing chain is in good condition on your 1985 lincoln town car parts engine.
In conclusion, while solenoids are important 1985 lincoln town car parts, they are not typically the primary source of vacuum system problems in a 1985 Lincoln Town Car. Focus on inspecting and replacing the aging vacuum lines and verifying the condition of the timing chain to ensure optimal performance and longevity for your classic vehicle.
