89 350 TPI hard cold start
08-26-2014, 11:42 PM
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Car: 2009 Silverado 1500
Engine: 5.3 Vortec
Transmission: 4L60E
89 350 TPI hard cold start
Hello everyone. Just started having this issue the past weekend. When the car is cold (after sitting overnight) and I crank it, it has an extended crank and then fires and dies. I can crank again and it will crank and fire normally. I recently replaced the oil pressure switch due to erratic gauge and rough idle. I am thinking that I may have a bad fuel pump relay and the pump is not going until I have oil pressure. Any ideas/suggestions? Thanks in advance.
09-01-2014, 05:33 PM
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Location: Near Calgary AB
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Car: 2009 Silverado 1500
Engine: 5.3 Vortec
Transmission: 4L60E
Re: 89 350 TPI hard cold start
UPDATE: I checked the relay today and it tested ok. Re-connected and tested and now the pump will prime when the key is turned on. Suspect it was just a poor connection. All good now!
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