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3dr cosworth more problems!

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Old Mar 31, 2013 | 07:43 PM
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tonyRS
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From: gateshead
Default 3dr cosworth more problems!

I got the car out after while off the road and have now got a list of problems which were not there when i parked it up!!
1,speedo is knackered
2,fuel gauge not working, but fuel light comes on dash?
3,fuel pump is failing.
so iv got a brand new 044 pump and a braided rewire loom, do i fit the pos/neg at pump and battery and then pick the original red/black up at the pump and connect to the new loom? secondly has anyone got a good set of fully working 3dr clocks for sale? and what is best to use to stick the bodykit back on as i want to remove it and refit. Im losing interest rapidly with these cars now!
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Old Apr 2, 2013 | 12:58 PM
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Usually with the pump the original relay is used as the 'trigger' for the new relay, some go back to the battery for the ground as it has the least path of resistance then, but imo this is overkill and using a good ground elsewhere will suffice, but yes the live should have a fused connection from the battery.

With the gauge is sounds like a sender problem, maybe float jammed etc, does it have fuel in it?

Martin
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Old Apr 2, 2013 | 01:35 PM
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Originally Posted by martysmartie
Usually with the pump the original relay is used as the 'trigger' for the new relay, some go back to the battery for the ground as it has the least path of resistance then, but imo this is overkill and using a good ground elsewhere will suffice, but yes the live should have a fused connection from the battery.

With the gauge is sounds like a sender problem, maybe float jammed etc, does it have fuel in it?

Martin
lol never thought about putting fuel in no i had just filled it, im going to lower tank this week and check float.
On my new harness its all labelled bat. pos/ bat.neg at one end then at rear its pos/neg which is obviously pump then theres one wire which says black/red, so do i just cut original wire and join to this? the loom obviously has a fuse and a relay so is my original relay redundant once new loom is fitted? wiring is not my thing
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Old Apr 2, 2013 | 09:00 PM
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The normal fuel pump rewire involves connecting a trigger wire in the boot to original feed and the replacement loom with fused relay near the battery has new feed wires direct to the pump, but I would check wiring under dash as well as I removed my lower dash to sort a few wiring issues and found the connector between engine loom and main car loom had melted in the plug which could be a fire hazard so I have removed wires from the plug and replaced connector with a new higher rated connector to be sure, it would still work with a new fuel pump loom but I feel happier that I have no melted wires that could be a potential future issue on the car.
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Old Apr 3, 2013 | 07:52 AM
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spot on mate thats exactly what i wanted to know, i will check the connector under dash too
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