Will not cold start help! - Ford Powerstroke Diesel Forum

 
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post #1 of 8 Old 02-11-2011, 12:49 PM Thread Starter
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Will not cold start help!

Replaced the glow plug relay, did not help. Glow plugs? or connections? do not really want to take the valve cover off unless I have too. If you cross the two large posts on the relay it will start right up. did this with the old relay too thats why we replaced it thought it was bad but apparently not. Is there a way to test the glow plugs without removing the valve cover. The truck has 300,000 miles on it and this is the first major problem except it likes to eat up alternators. Just got one with a lifetime warrenty and they replace it for free when it goes bad
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post #2 of 8 Old 02-11-2011, 02:06 PM Thread Starter
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Any ideas would be good.
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post #3 of 8 Old 02-14-2011, 03:43 PM
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post #4 of 8 Old 02-14-2011, 04:20 PM
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i'd say you need GP's. just go for it, how many miles have you had it for?
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post #5 of 8 Old 02-14-2011, 08:22 PM
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If he jumps the posts it starts, so I don't think it could be glow plugs.
It sounds to me like the problem is on the other end of the gpr, and whatever is supposed to signal the relay to turn on isn't doing that or the wire is shorted or broke.

I'm no mechanic so please take this with a salt block handy.
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post #6 of 8 Old 02-15-2011, 01:46 PM Thread Starter
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Quote:
Originally Posted by Dietoremain View Post
i'd say you need GP's. just go for it, how many miles have you had it for?
a lot it has 300,000 or so on it now and it had 80,000 or so on it when we bought it.
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post #7 of 8 Old 02-15-2011, 01:47 PM Thread Starter
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Quote:
Originally Posted by Chakir View Post
If he jumps the posts it starts, so I don't think it could be glow plugs.
It sounds to me like the problem is on the other end of the gpr, and whatever is supposed to signal the relay to turn on isn't doing that or the wire is shorted or broke.

I'm no mechanic so please take this with a salt block handy.
I agree but we havent been able to find the prob. wire light when there supposed too with a test light. Thinking maybe the new and old relay are bad. I guess you can get a brand new bad relay?
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post #8 of 8 Old 02-15-2011, 01:54 PM Thread Starter
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