02 silverado hard to start when warm - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rudy67chevy · 04-19-2009, 10:30 PM

my 02 silverado is hard to start when i park it. for a few minutes or hours after i drove it. A few block or a few miles. The truck acts like my old chevy, when i try to start it in the morning

Slammed67 · 04-21-2009, 01:12 PM

Have you checked the fuel pressure regulator? My truck had a similar issue and that was the problem. It's located on the driver's side of the engine and has a vacuum hose hooked to it. Pull off the hose (with the engine off) and if any gas drips out, it needs to be replaced. Just a thought and is easy to test.

skidder111 · 04-21-2009, 01:18 PM

Mine did that when it was fairly new; started OK when cold but not when warm. Turned out it was faulty injectors causing flooding. Just a thought.

jkade · 04-21-2009, 06:50 PM

Quote:

Originally Posted by Slammed67

Have you checked the fuel pressure regulator? My truck had a similar issue and that was the problem. It's located on the driver's side of the engine and has a vacuum hose hooked to it. Pull off the hose (with the engine off) and if any gas drips out, it needs to be replaced. Just a thought and is easy to test.

Exact same thing happend to my 02. Replaced the regulator and it never missed another beat.

dmarty · 04-25-2009, 03:33 PM

I had the same problem. See my earlier post. It was the press reg. Put a fuel press gauge on it and see what the press is. I just pressed in the Schrader valve on the fuel rail and nothing sprayed out. I'm not sure, so you better check with the manual, but I think the press should be about 60 psi. Also, when I pulled the vacuum line, gas ran out. Replaced the press reg and it has been running fine now for 2 months.

04-19-2009, 10:30 PM	#1
Rudy67chevy rudy67chevy Join Date: Jun 2007 Location: Cali Posts: 154	02 silverado hard to start when warm my 02 silverado is hard to start when i park it. for a few minutes or hours after i drove it. A few block or a few miles. The truck acts like my old chevy, when i try to start it in the morning

04-21-2009, 01:12 PM	#2
Slammed67 Progress = 0% Join Date: Nov 2001 Location: Kansas City, MO Posts: 2,108	Re: 02 silverado hard to start when warm Have you checked the fuel pressure regulator? My truck had a similar issue and that was the problem. It's located on the driver's side of the engine and has a vacuum hose hooked to it. Pull off the hose (with the engine off) and if any gas drips out, it needs to be replaced. Just a thought and is easy to test. __________________ Jason - '67 GMC swb \| '57 Bel-Air 4dr hardtop \| '56 210 4dr Wagon \| 2000 GMC Sierra

04-21-2009, 01:18 PM	#3
skidder111 Registered User Join Date: Jan 2008 Location: Pincher Creek, Alberta, Canada Posts: 141	Re: 02 silverado hard to start when warm Mine did that when it was fairly new; started OK when cold but not when warm. Turned out it was faulty injectors causing flooding. Just a thought. Last edited by skidder111; 04-21-2009 at 01:19 PM.

04-25-2009, 03:33 PM	#5
dmarty Registered User Join Date: Dec 2008 Location: Verona, WI Posts: 97	Re: 02 silverado hard to start when warm I had the same problem. See my earlier post. It was the press reg. Put a fuel press gauge on it and see what the press is. I just pressed in the Schrader valve on the fuel rail and nothing sprayed out. I'm not sure, so you better check with the manual, but I think the press should be about 60 psi. Also, when I pulled the vacuum line, gas ran out. Replaced the press reg and it has been running fine now for 2 months. __________________ 72 GMC Sierra Grande SWB 402 BB A/C (Owned it since 1973) 99 Silverado 1500 LT with 315K miles (RIP) 2012 GMC Sierra SLT



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