Truck is Need Help with Truck that has barely power. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jfrank133 · 04-11-2005, 10:11 PM

About a month ago i replaced the head gaskets on my 87 chevy scottsdale, it has a 305 with fuel injection. Ever since i replaced it, my truck has no power it runs but like its barely making it, whenever i come to a stop at a light or stop sign and i give it gas to go it like wants to die. The timing is good, i checked it, double checked it and its good, also changed that EGR valve, and several emission sensors with no luck. Now i was told that it can be that i over tightend the heads, or can it be something else that i missed. I just dont know what else to check. Please help.

badone07 · 04-11-2005, 11:56 PM

Doubt you over tightened the heads if you torqued them to spec. Valves adjusted properly, check for any vacuum leaks? Other than a cr drop, did you use 305 head gaskets?

jfrank133 · 04-12-2005, 07:45 AM

yes, I did use a 305 head gasket.

Hoods69BadBowTie · 04-13-2005, 02:17 AM

I would also say check for vaccum leaks. Don't think you tighten the heads too much if they were set up to specs.
-Later

04-11-2005, 10:11 PM	#1
jfrank133 AUSTIN TX Join Date: Sep 2004 Location: Austin, Texas Posts: 135	Truck is Need Help with Truck that has barely power. About a month ago i replaced the head gaskets on my 87 chevy scottsdale, it has a 305 with fuel injection. Ever since i replaced it, my truck has no power it runs but like its barely making it, whenever i come to a stop at a light or stop sign and i give it gas to go it like wants to die. The timing is good, i checked it, double checked it and its good, also changed that EGR valve, and several emission sensors with no luck. Now i was told that it can be that i over tightend the heads, or can it be something else that i missed. I just dont know what else to check. Please help.

04-11-2005, 11:56 PM	#2
badone07 Project 2 Resume Join Date: May 2004 Location: Jim Thorpe, PA Posts: 884	Doubt you over tightened the heads if you torqued them to spec. Valves adjusted properly, check for any vacuum leaks? Other than a cr drop, did you use 305 head gaskets? __________________ John 1984 C30 Chevy Crew Cab Dually 1998 Jeep Cherokee 4x4 2004 Chevy Trailblazer 4x4 (wife's) 1970 Mustang FB fully tubed (getting 521 BBF & powerglide) 1978 Nova 2dr (going BBCaddy & S.P. th400) 1984 Monte SS (circle track car)

04-13-2005, 02:17 AM	#4
Hoods69BadBowTie Chevys Kick A$$ Join Date: Jan 2005 Location: Zootown, MT Posts: 12,699	I would also say check for vaccum leaks. Don't think you tighten the heads too much if they were set up to specs. -Later __________________ HOODS is what I answer too -'79, '77, '88 Pickup Sold, '85 Camaro, '83 T/A, '81,'83,'90 K5 Blazer All Sold -'79 3/4 ton "Big Yellow Bananna" Lifted 4spd. 39.5 TSL Swampers, The money Pit -'86 K5 Blazer Silverado 6.2 4" lift 35"s -'95 Ext. Cab Shorty 4" Tuff Country rolling 35" M/T's -'83 Monte Carlo T-Tops. 126,500 Original Miles -LATER I would rather push a Chevy then drive a ford!!

04-12-2005, 07:45 AM	#3
jfrank133 AUSTIN TX Join Date: Sep 2004 Location: Austin, Texas Posts: 135	yes, I did use a 305 head gasket.



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