2001 F350
 

Hey guys,
Hope ya guys can help me out. Pretty new to owning a diesel and I love them. Bought one as we go out west sledding and pull a 4 place trailer along with gear and it works great. So my issue is within the last 3-4 weeks my truck has been getting harder and harder to start. Yesterday it took forever to start after work along with this morning. Never had to plug it in. Just looking to see what I can check before I bring it in. I am pretty handy with tools. The truck is just shy of 200,000 miles. Any help would be much appreciated. Thanks Live in MN.

might need some glow plugs and a relay

Was kinda thinking that. Been reading onhere how to test and change them out. Doesnt seem to bad.

relay is super easy, glow plugs it takes me about 2-3 hours to do.

Where is the relay located at?

Passenger side of the engine

Thanks

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I went out and looked for the relay but can't seem to find it.

Is there a little computer looking thing on the passenger side of the engine? Above the valve cover

I looked at some pics from Oreillys auto and from that pic of the part it looks like there are 2 of them on top of the motor on the passenger side.

One is for the intake heater, the other is glow plugs

Which is which? One is front of motor the other is behind that one. Thanks.

Not sure, trace the wires and find out. I can't remember which is which

So this morning I tried to start it and it wouldn't. Did the test on it and no voltage. I jumped it with a screwdriver as I read on here and it started. So guessing the relay is bad. As stated earlier there are 2 relays one for glow plugs and other for intake heater. My question is should both of them as voltage going to them when the key is turned on as nether one of them did?

along with the relay and glow plugs, it might be a good idea to check and or replace the block heater.
check out dieselrxproducts.com , their products are top notch as far as im concerned.