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pancake · 01-10-2010, 04:52 PM

The Blazer lives again!!!

After replacing the intake that i f*#*ed up and taking my time with all the seals and gaskets the blazer starts again.

I did buy a new IAC and reset it as described by RF i another post....nice smooth idle...600rpm

When I pushed on the gas pedal it poped and wanted to die...can this be due to lack of fuel pressure?

I have the timing set at 0TDC with the connector unpluged .

Now for the fuel pressure....

When the engine was warm and running I kinked the fuel line and the fuel pressure gauge climbed very fast past 20psi and almost to 30psi before I unkinked the line...This would tell me the problem is my fuel pressure regulator. it also had a slight "clicking" noise when the truck was not running. It seemed the noise was coming from the TBI.

I did rebuild the TBI but do not remember if the kit came with a new spring?? I looked in the box of old TBI gaskets and there was not an old spring...maybe the kit did not come with it...either way I think I need to replace it.

Can I buy just the spring or do I need a "kit"?

does anyone have a part number for the fuel pressure regulator spring?

I can finaly see the light at the end of the tunnel for my TBI retrofit and I would like to thank EVERYONE who put up with me

Thanks to cjracing15 for starting this thread and RFMaster and 68TT for all the help you guys are great..

01-10-2010, 04:52 PM	#443
pancake Registered User Join Date: Apr 2009 Location: Arvada, Colorado Posts: 84	Re: Tbi swap build thread The Blazer lives again!!! After replacing the intake that i f#ed up and taking my time with all the seals and gaskets the blazer starts again. I did buy a new IAC and reset it as described by RF i another post....nice smooth idle...600rpm When I pushed on the gas pedal it poped and wanted to die...can this be due to lack of fuel pressure? I have the timing set at 0TDC with the connector unpluged . Now for the fuel pressure.... When the engine was warm and running I kinked the fuel line and the fuel pressure gauge climbed very fast past 20psi and almost to 30psi before I unkinked the line...This would tell me the problem is my fuel pressure regulator. it also had a slight "clicking" noise when the truck was not running. It seemed the noise was coming from the TBI. I did rebuild the TBI but do not remember if the kit came with a new spring?? I looked in the box of old TBI gaskets and there was not an old spring...maybe the kit did not come with it...either way I think I need to replace it. Can I buy just the spring or do I need a "kit"? does anyone have a part number for the fuel pressure regulator spring? I can finaly see the light at the end of the tunnel for my TBI retrofit and I would like to thank EVERYONE who put up with me Thanks to cjracing15 for starting this thread and RFMaster and 68TT for all the help you guys are great..