fuel level issues!!!!!!!
Thread Starter
Burning Brakes
Joined: Jan 2011
Posts: 1,203
Likes: 2
fuel level issues!!!!!!!
I have a 99 frc with fuel level error.Drive side pump and sender new still have fuel level on empty.I removed passenger side jet pump and cleaned fuel card.It was black looking from years of build up.reinstalled cleared codes and still gauge drop to empty.I had a new passenger side pump assembly for a 02 zo6.I removed fuel card from 02 and installed it on the 99 pump assemble[cause pump hangers are different].Car will not move from empty.Does anyone know if a 02 z06 fuel card work in a 99.Before I could clear codes and dash would read fuel level for a few minutes before falling to empty,After 02 card install it will not move at all.
Last edited by 69ls6; Jul 24, 2015 at 07:36 AM.
Team Owner
Joined: May 2001
Posts: 36,836
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
You're focusing strictly on the sender. The SJP may also be faulty/clogged/blocked, etc
Replace right side assembly.
AC Delco MU1216 (Has improved sender card) $228.89 at Amazon.
HTH
Replace right side assembly.
AC Delco MU1216 (Has improved sender card) $228.89 at Amazon.
HTH
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
The jet pump is designed to pump fuel to the drive side tank so the passenger side empties first. Once you stop the car for a while the two tank levels should equalize until you start driving again.
Pulling your dash DIC codes would help in diagnostics. If nothing then most likely the jet pump.
If you don't know how let us know. An auto store scanner is not going to show codes except for emissions.
Mr. Sam
Pulling your dash DIC codes would help in diagnostics. If nothing then most likely the jet pump.
If you don't know how let us know. An auto store scanner is not going to show codes except for emissions.
Mr. Sam
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Thanks Chuck.
I knew the later design had an anti siphon feature. The later FSMs show the siphon breaker (hole in the line) as item 11 and the FSM system description discusses the purpose.
The early FSMs do not show or describe such a siphon breaker and other design descriptions I have read do not indicate they have one. That would explain some of the funky fuel level readings we get on early models when the car has been sitting and how they rapidly change once the engine is running for a while.
I was always curious as to why they would not have one for the early years. That is, assuming they don't.
Mr. Sam
I knew the later design had an anti siphon feature. The later FSMs show the siphon breaker (hole in the line) as item 11 and the FSM system description discusses the purpose.
The early FSMs do not show or describe such a siphon breaker and other design descriptions I have read do not indicate they have one. That would explain some of the funky fuel level readings we get on early models when the car has been sitting and how they rapidly change once the engine is running for a while.
I was always curious as to why they would not have one for the early years. That is, assuming they don't.
Mr. Sam
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
AFAIK, there is none.
