HAS ANYONE DONE A REMOTE START ON A 99 GMC FULL SIZE 6.5 LTR DIESEL (OLD BODY STYLE),I REQUIRE THE RIGHT TACH WIRE .WHAT I HAVE GOT IS WHITE WIRE AT ALTERNATOR BUT AUTO START WORKS INTERMITTENTLY .IT DOES NOT START IN THE MORNINGS AND I HAVE TRIED TACHLESS AS WELL AND EXTENDING CRANKING TIME TOO.
ANY HELP WILL BE APPRECIATED.THANKS.
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skys the limit
The truck doesn't fire up? It's likely not a tach wire problem. Do you have a delay hooked up so that the remote start waits for the glow plugs to cycle?
YES THERE IS A DELAY(SET TO DIESEL MODE-12 SEC DELAY)
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skys the limit
see thats likely the problem. Glow plugs will be on for different lengths of time depending on the temperature. Most remote newer remote starts hook up to the wait to start light. This way, when the wait to start light shuts off, the truck starts. The problem with using a timed delay is that the time is never right. Either it is too long and glow plugs cool off before it starts or it is too short and the glow plugs aren't warmed up enough. Its impossible for it to work properly.
The reason I asked if the truck fires up or not is I am trying to see where your problem is. If your truck actually starts but holds the starter on, then your problem will be your tach wire. If it doesn't even start (just cranks over) then the problem is NOT the tach wire and is most likely the glow plugs or a bad ignition wire connection.
YES I THINK WHAT YOURE SAYING MAKES SENSE .THE TRUCK DOES NOT START IN THE MORNINGS.TRIES A SECOND TIME AND THEN ENGINE SHUTS OFF.IN THE DAY TIME THERE IS NO PROBLEMS ,TRUCK STARTS UP ON FIRST TRY EVERY TIME.
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skys the limit
What kind of remote start are you using? Does it have a glow plug input wire? IF you were to go out in the morning, how long would the wait to start light stay on? Does it start really good with the key?
IT IS A BLACK WIDOW 400 STAND ALONE REMOTE START.IT DOES NOT HAVE A GLOW PLUG INPUT WIRE,JUST A TACH WIRE WHICH IS SAID TO DO BOTH.YES THE TRUCK DOES START GOOD WITH THE KEY.
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skys the limit
Try setting the delay closer to the actual time it takes for the wait to start light to go off in the morning. Your going to have to start it on a cold morning with the key and time the wait to start light. You will likely need to change it from season to season.