Really need some help, please
Thread Starter
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Really need some help, please
Having some problems again, heres whats been going on...
I put new heads on it a few weeks ago, had a mechanic adjust the rocker arms and timing. He says my fuel pump is going out. I replaced the pump and the car runs fine with a slight miss every now and then and it overheats.
Last Friday it started running really bad, made it around the corner and shut it off. It was leaking fuel out of the back of the fuel rail. I fixed that and it ran fine again. A little rough at first but smoothed out.
Last night I adjusted the timing to 6* BTDC it was at 10*. Went out for a drive, but it started storming real bad so I went home. This morning it'll start up, run for a second or two and die. When I give it gas it sounds real rough and will die when I let off. I checked vacuum lines, its all good. Getting spark too. I have no idea whats wrong and its driving me crazy. I really need some help.
I put new heads on it a few weeks ago, had a mechanic adjust the rocker arms and timing. He says my fuel pump is going out. I replaced the pump and the car runs fine with a slight miss every now and then and it overheats.
Last Friday it started running really bad, made it around the corner and shut it off. It was leaking fuel out of the back of the fuel rail. I fixed that and it ran fine again. A little rough at first but smoothed out.
Last night I adjusted the timing to 6* BTDC it was at 10*. Went out for a drive, but it started storming real bad so I went home. This morning it'll start up, run for a second or two and die. When I give it gas it sounds real rough and will die when I let off. I checked vacuum lines, its all good. Getting spark too. I have no idea whats wrong and its driving me crazy. I really need some help.
Thread Starter
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
There are no codes being set and the fuel pressure was checked by the mechanic which is how he narrowed it down to the pump. A guy I work with said it could be a bad alternator or battery. The battery is only a few months old.
Le Mans Master
Joined: Aug 2003
Posts: 9,884
Likes: 3
From: Magnolia Mississippi
St. Jude '03-'04-'05-'06-'07
A clogged fuel filter can also give sym of bad pump.
Check battery voltage, and alt to battery charging: Search for procedure and info.
Leaking injector, check plugs, check cap
Check battery voltage, and alt to battery charging: Search for procedure and info.
Leaking injector, check plugs, check cap
Thread Starter
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
New cap, new rotor, new wires, new plugs. Voltage is around 14.2-14.5 volts so its all good. Well I tried to keep it running a little bit ago, it ran rough until it warmed up and then ran fine.
I adjusted the belt tensioner cause it was wobbling up and down, so I tightened that up. I put the timing back at 10* BTDC to see if that would have an effect.
So I guess it runs rough until warming up, which makes me think of leaking injectors or something. Your thoughts?
I adjusted the belt tensioner cause it was wobbling up and down, so I tightened that up. I put the timing back at 10* BTDC to see if that would have an effect.
So I guess it runs rough until warming up, which makes me think of leaking injectors or something. Your thoughts?
Team Owner
Joined: Jan 2003
Posts: 20,316
Likes: 246
From: Summerland B.C. Canada
http://members.shaw.ca/corvette86/Fu...mDiagnosis.pdf
Thread Starter
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Do you have a gauge ?? A little diagnostic work will let you know if it is an injector leaking.
http://members.shaw.ca/corvette86/Fu...mDiagnosis.pdf
http://members.shaw.ca/corvette86/Fu...mDiagnosis.pdf
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