hard to start cold on 1998 GMC 1500 Pickup

4.3 v6 hard to start when cold starts fine hot has missfire around 2300 &5000 rpm

by in Beverly Hills, CA on December 30, 2010
2 answers
ANSWER by on December 30, 2010
Check the fuel pressure of your 1998 GMC 1500 Pickup. It should be 60-66psi with the pump running and the engine off.
ANSWER by on December 30, 2010
From previous experience there is a TSB (Technical Service Bullitin) that maybe the problem.It concerns the crankshaft sensor at times can cause ECM to set timing to 50 degrees advance causing starting problems.
Related Items:
Hello, My fathers truck does not start until the 4th time (turning key) when starting cold. Can drive a short distance leave sit for about 1/2 hour and starts the same way when cold. Truck has 1...
Recently my truck has been shutting off shortly after starting it up. All of my gauges read wrong when this happens. My battery says it's only a quarter of the way charged, temp is all the way in r...
is it the starter or the silinoid or something else, after it warms up it starts right away

Related Content