The Service Engine Soon light comes on and stays on. I have a 2001 3500 6.6 diesel. When I have it checked, it shows up as glow pulg. The truck only has 62,000 miles on it. Do the glow plugs need to be replaced? If so how much will it be?

Sounds like a diesel. Glow plugs usually need to be warmed up before starting an engine. Smaller diesels either warm up quicker or it is less critical than a tractor trailer. So either your glow plug light is normal letting you know it needs time to warm up or it's letting you know they are weak and need to be replaced. I'd check the owners manual to be sure.

I think you nailed it with the amount of time you glow plug light. It should stay on until you engage or it should be timed to stay on longer.

You have one or more glow plugs that are in need of replacing. The problem can also be related to the glow plug timer circuit.

by 'coil light' do you mean the glow plug light? is your car diesel? do you mean the yellow light that looks like a spring?usually if it doesnt come on or stays on there is a problem with one or more of the glow/heater plugs. If you can access them check with a voltmeter that you have power supply to them all

Your diesel vehicle is equipped with glow plugs, and also with a Glow Plug Light that will either come on and stay on, or flash or blink when a fault is detected by the ECU (engine management unit). When the Glow Plug Light comes on, the ECU stores information about the condition that has caused it to come on.4 Jan 2016

Is It Safe to Drive With the Glow Plug Light On? ' YourMechanic Advice

https://www.yourmechanic.com/article/is-it-safe-to-drive-with-the-glow-plug-light-on Glow plug light wont go out Google Search

I got a same problem in Holden Captiva diesel 2010 model as soon as you accelerate on traffic light the traction control light comes on engine light on dash, engine lack of power, turn the engne off for few seconds and goes ok but engine light stays on dash. Checked with the tech tool, it comes fuel metering code, can bus code... What it could be????. I've already changed fuel filter and did general service, still comes on. ANY IDEA PLEASE. OR I BURN THIS CRAPTIVA

p1677 code on ssangyong stavic 2.7l turbo diesel. Engine light comes on and vehicle loses all power and coasts to a halt. Also has 3 open circuit glow plug codes.

The problem is the glow plugs are bad or not coming on. Even though the "wait to start" light comes on, the glow plugs may not come on. I have found when this happens, the light comes on for only 1-2 seconds and goes off. With the engine cold, the light should stay on for about 5 to 7 seconds. The colder the engine, the longer the plugs should stay on. There is one glow plug for each cyl. The plugs are in the "V" of the engine and screwed into head. Only one wire goes to the glow plug and the wire runs from one plug to the next on each bank. You test them by removing them and grounding the body and putting 12v positive to the terminal. The tip should glow red hot like a cigarette lighter. There is a glow plug relay behind the air intake horn which also could be the problem and there is a engine temp sensor in the circuit also.

Hi

The glow plug coming on on the Diesel Mondeo is an engine management fault indicator. The car goes into "limp mode" when this happens or in other words safety mode is triggered. This explains your loss of power.

To find the cause of this light coming on - the car will have to go on an OBD scanner at a service shop which will read the codes stored in the cars computer and give you an answer as to what is causing the fault to show.

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Pick up a copy of Haynes Diesel Engine Repair Manual, Part # 10330, at your local auto parts store. It has an excellent diagnostic section, check page 1-44. It's a must have for a diyer with a diesel motor. It costs about $20.