What causes my blinkers to blink fast?
A bad bulb is by far the most common reason that a signal blinks faster. This is because a bad bulb alters the resistance in a circuit, sending a different current through the blinker. Otherwise, inspect each turn signal bulb for signs of failure such as broken filament or dark, clouded glass.
What causes a flashing check engine light on a GMC Yukon?
Other Issues: Flashing Check Engine Light- GMC Yukon While a majority of the time, the flashing check engine light is going to be caused by a misfire related to your Yukon’s ignition system or fuel system (as stated above), there are other issues that can cause it.
Why is my turn signal not working on my 1999 Yukon?
1999 Yukon; rear turn signal not working. Front working fine, fast blinking indicator, was not the bulbs, was not a loose wiring harness, or dirty connectors (although all worth a quick try) * The board that the 3 lightbulbs plug into, goes bad ! Super easy fix ]
Why does my turn signal blink twice as fast as the front?
I haven’t even begun to check it out, except for glancing at a reflection of my left turn signals as I’m driving. It appears that the front is working and the back is not. It blinks normal speed on the right side, but twice as fast on the left. Is this because the rear light appears to be out, or is it a bad relay?
Why is the intermitent blinking on my GM Truck?
I did a bit of looking into this, and according to GM, the P1638 sets if the PCM is not getting the correct signal for the alternator load, and they suggest checking the connections at the alternator and at the PCM.
1999 Yukon; rear turn signal not working. Front working fine, fast blinking indicator, was not the bulbs, was not a loose wiring harness, or dirty connectors (although all worth a quick try) * The board that the 3 lightbulbs plug into, goes bad ! Super easy fix ]
Other Issues: Flashing Check Engine Light- GMC Yukon While a majority of the time, the flashing check engine light is going to be caused by a misfire related to your Yukon’s ignition system or fuel system (as stated above), there are other issues that can cause it.
I haven’t even begun to check it out, except for glancing at a reflection of my left turn signals as I’m driving. It appears that the front is working and the back is not. It blinks normal speed on the right side, but twice as fast on the left. Is this because the rear light appears to be out, or is it a bad relay?
Why does my LED flasher Blink so fast?
Hyperflashing is when the turn signals blink faster than your stock incandescent bulbs did. This happens because your new LED bulbs draw such little power that your turn signal relay sees the bulbs as being out. Installing an LED flasher module specifically designed for LED bulbs.