Question about 1997 Chevrolet K1500
Dependig on the mileage on the engine there are three things that come to mind but are not all that could cause the problem you are experincing. One if the fuel pump check valve is worn out it could allow the fuel to drain back into the tank and would cause it to take longer to start. On GM engines when you turn the key to the on postion the pump will run for two seconds so turn the key on and off about 6 times before starting, if it starts right away you have found the problem. The second issue is the oil pressure switch it controls the fuel pump if there is no oil pressure then it won't allow the fuel pump to run, again this could be caused by the oil draining out or the oil pressure switch is going bad, They normally leak a little oil on the outside if they are going bad, but not always. So try the first test before starting then try to start if it starts up it's fuel pump if it is still hard to start check the oil pressure switch the oil pressure switch cost about $20.00 and can take a half hour to change depending on the engine in the truck the v-6 or v-8. If you change the switch try the first test again if it is still hard to start it may have low compression low or no spark plugged air filter and so on. Hope this helps and thanks for using fix-ya.
Posted on Jul 14, 2010
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Posted on Jan 02, 2017
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