need help with parts ID
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need help with parts ID
on my 97 f250 7.3 power stroke, under what I will call the engine cap/hat.. the big cover over the center of the engine, which has the 7.3 Turbo Diesel insignia stamped in it...... that is a part right behind where the alternator would be that looks real close to a starter solenoid...... what is this part, it has 4 wires connected to it... two big (one is black/yellow) and the other I
believe is black/orange......and then there are two smaller wires attached to it also.... I'm confused what this is .... I do see the starter solenoid mounted on the passenger side inner fender..... the reason I am asking is I hear it make a noticeable 'click' when I turn the key on; to just before the starter would kick in..... is this normal? what is this part? I am questioning it because I notice the volt meter drop about a full point, from 10 to 9 (or so), when I turn the key..... is this normal?
I'm still trying to diagnose an electrical problem I am having upon engine startup. I am taking the alternator to get it tested it tomorrow, and thought I would replace the part in question (above) at the same time.
believe is black/orange......and then there are two smaller wires attached to it also.... I'm confused what this is .... I do see the starter solenoid mounted on the passenger side inner fender..... the reason I am asking is I hear it make a noticeable 'click' when I turn the key on; to just before the starter would kick in..... is this normal? what is this part? I am questioning it because I notice the volt meter drop about a full point, from 10 to 9 (or so), when I turn the key..... is this normal?
I'm still trying to diagnose an electrical problem I am having upon engine startup. I am taking the alternator to get it tested it tomorrow, and thought I would replace the part in question (above) at the same time.
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Joined: Mar 2007
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From: Idaho
Sounds like the glow plug relay. Normal for it to click and cause the volt meter to drop. It's sending power to the glow plugs and will do so for about 90 seconds. If you wait about that long before starting you will see the volt meter jump back up.
Post Fiend
Joined: Mar 2007
Posts: 9,010
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From: Johnson City, TN.
Yes that is the Glow Plug relay and it sounds fine. It turns on the GP's for 90 seconds or less depending on the temp. What problems are you having? This place can fix problems faster than a technician that is standing over the truck.
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my problem is
my problem is when I start the truck cold (97 f250 7.3 power stroke), on certain occassions, about 80% of the time, it runs on all 8 for about 30sec to 1 minute, the voltmeter reads about 10, then the check engine light comes on and at the same time, the truck sounds like it is running on 4 or 6 cylinders or ? so I wait about 1/2 minutes, try it again, and it will do it again, and then I try it again, and keep my fingers crossed. if it keeps running for about 1-2 minutes the voltmeter gradually moves up to 12.8 or so and it will run fine from there.......I have replaced the batteries (what cold cranking amp rating should I have on these batteries),... and I've replaced the alternator (I am taking it down to get it tested this morning).....
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
Wiring harness under the valve covers or burned connector at the valve cover more than likely.
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question for Tim 'Proud user of the cure"
I had this electrical problem diagnosed by Ford about 4 months ago and they said they 'found high resistance in #2 and #4 injectors and glow plugs'. does what you are saying and what Ford says sound like the same thing?
what should I replace first, the wiring for the injector under the valve cover and the two glow plugs at the same time? I removed the valve cover this past weekend, that was a 1 on a scale of 1 to 10 for me.... what is replacing the injectors and glow plugs, a 4, an 8? I've ordered a repair manual.
what should I replace first, the wiring for the injector under the valve cover and the two glow plugs at the same time? I removed the valve cover this past weekend, that was a 1 on a scale of 1 to 10 for me.... what is replacing the injectors and glow plugs, a 4, an 8? I've ordered a repair manual.
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Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
I had this electrical problem diagnosed by Ford about 4 months ago and they said they 'found high resistance in #2 and #4 injectors and glow plugs'. does what you are saying and what Ford says sound like the same thing?
what should I replace first, the wiring for the injector under the valve cover and the two glow plugs at the same time? I removed the valve cover this past weekend, that was a 1 on a scale of 1 to 10 for me.... what is replacing the injectors and glow plugs, a 4, an 8? I've ordered a repair manual.
what should I replace first, the wiring for the injector under the valve cover and the two glow plugs at the same time? I removed the valve cover this past weekend, that was a 1 on a scale of 1 to 10 for me.... what is replacing the injectors and glow plugs, a 4, an 8? I've ordered a repair manual.
https://www.ford-trucks.com/forums/6...=1#post5286089