Picked up my new 94 z28
04-20-2008, 01:19 AM
#1
Teching In
Thread Starter
iTrader: (1)
Join Date: Dec 2007
Location: Tyler, TX
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
Picked up my new 94 z28 hey guys i just bought a z28 and picked it up earlier today. the guy drove from alabama to texas to take it to me.
however he never mentioned till he signed the title over to me that it has a hard time starting up when its a cold start up..
and hes right, itll crank for about 5-7 seconds then finally turn over.. he told me that it is the fuel filter??? ($7 part at autozone..)
anyone have any experience with this? im kinda upset because he didnt tell me till he drove 9 hours to sign the title over. anyway its a pretty car just hard starter..
please help anyone.. and im sorry if its a dumb question, just new with lt1s and i want to take care of my cars, thanks guys.
however he never mentioned till he signed the title over to me that it has a hard time starting up when its a cold start up..
and hes right, itll crank for about 5-7 seconds then finally turn over.. he told me that it is the fuel filter??? ($7 part at autozone..) anyone have any experience with this? im kinda upset because he didnt tell me till he drove 9 hours to sign the title over. anyway its a pretty car just hard starter..
please help anyone.. and im sorry if its a dumb question, just new with lt1s and i want to take care of my cars, thanks guys.
04-20-2008, 01:46 AM
#2
Staging Lane
Join Date: Mar 2008
Location: California
Posts: 62
Likes: 0
Received 0 Likes
on
0 Posts
i would start replacing everything thats what I always do when I get a "used" car
plugs
wires
cap & rotor
fuel filter
maybe even the starter
coil
PVC valve
air filter
just some starters...
plugs
wires
cap & rotor
fuel filter
maybe even the starter
coil
PVC valve
air filter
just some starters...
04-20-2008, 02:01 AM
#3
TECH Veteran
iTrader: (10)
Join Date: Jul 2006
Location: Rialto CA
Posts: 4,770
Likes: 0
Received 0 Likes
on
0 Posts
i had that problem when i bought the car, it turned out to be the fuel pressure regulator. it was my first guess too.
cold starts took 5-10 cranks and hot starts were normal.
cold starts took 5-10 cranks and hot starts were normal.
04-20-2008, 12:30 PM
#7
TECH Junkie
iTrader: (17)
Join Date: Aug 2006
Location: Rapid City, SD
Posts: 3,161
Likes: 0
Received 0 Likes
on
0 Posts
Does it sound like this startup? http://youtube.com/watch?v=PYdd_eYKzmY
That's my car, I still haven't fixed it. I can turn the key over like 10 times and it will start right up. Points toward a fuel tank check valve, leaky injectors, or bad fuel pressure regulator. I hope it have it fixed this summer however
That's my car, I still haven't fixed it. I can turn the key over like 10 times and it will start right up. Points toward a fuel tank check valve, leaky injectors, or bad fuel pressure regulator. I hope it have it fixed this summer however
Trending Topics
04-20-2008, 02:44 PM
#8
Teching In
Thread Starter
iTrader: (1)
Join Date: Dec 2007
Location: Tyler, TX
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
Does it sound like this startup? http://youtube.com/watch?v=PYdd_eYKzmY
That's my car, I still haven't fixed it. I can turn the key over like 10 times and it will start right up. Points toward a fuel tank check valve, leaky injectors, or bad fuel pressure regulator. I hope it have it fixed this summer however
That's my car, I still haven't fixed it. I can turn the key over like 10 times and it will start right up. Points toward a fuel tank check valve, leaky injectors, or bad fuel pressure regulator. I hope it have it fixed this summer however
yea that is how it sounds.. how long have you had it like this? i just replaced my fuel filter about 20 min ago and fixin to see if it fixed it.. i hope so but if not im thinking possibly the regulator also. like the guy posted above.
thanks for yalls help guys and keep postin
04-21-2008, 04:00 PM
#15
TECH Addict
iTrader: (6)
Join Date: Jul 2007
Location: Ringoes/Flemington, New Jersey
Posts: 2,857
Likes: 0
Received 3 Likes
on
2 Posts
could be the one-way check valve in the fuel pump. try priming the fuel pump (turn the ign key to run then off a few times) and then try to crank it... see what happens
04-21-2008, 06:40 PM
#16
Teching In
Thread Starter
iTrader: (1)
Join Date: Dec 2007
Location: Tyler, TX
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
by the way the fuel filter didnt work if noone noticed..
04-21-2008, 08:11 PM
#17
Teching In
Thread Starter
iTrader: (1)
Join Date: Dec 2007
Location: Tyler, TX
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
ok i tried priming it on a cold start and it didnt seem to do much, i primed it bout 10 times i figured that was enough.. but i still think its something in the fuel system because it has no trouble cranking just turning over..
04-21-2008, 08:27 PM
#18
TECH Enthusiast
iTrader: (2)
Join Date: Nov 2004
Location: San Antonio, Texas
Posts: 713
Likes: 0
Received 0 Likes
on
0 Posts
you may need to replace the fuel pump itself. I had the same issue with my LT1 and it was hard to start cold. When the car was warmed up it seemed to start a lot better.Once I replaced the fuel pump problem solved.
Of course it was the last thing I replaced, since I already did the fuel filter, wires, coil, pcv valve. Hate to say it but its a process of eliminate with these cars to get to the root problem.
Of course it was the last thing I replaced, since I already did the fuel filter, wires, coil, pcv valve. Hate to say it but its a process of eliminate with these cars to get to the root problem.
04-21-2008, 08:37 PM
#19
Teching In
Thread Starter
iTrader: (1)
Join Date: Dec 2007
Location: Tyler, TX
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
alrighty i was hoping i wasnt going to have to do that, but i appreciate the comments, if anyone still knows anything else how i could save money let me know. thanks guys
04-21-2008, 11:30 PM
#20
TECH Addict
iTrader: (6)
Join Date: Jul 2007
Location: Ringoes/Flemington, New Jersey
Posts: 2,857
Likes: 0
Received 3 Likes
on
2 Posts
i had this problem on my old 94 formula. if you have a fuel pressure gauge, you should check it. My car, id hook up the pressure gauge.. and prime the pump. it would have like 45 psi. then as soon as the pump turned off, it would shoot down to 0PSI in a few seconds.
Since it bled back SO SO fast, i KNEW it was the one-way check valve in the fuel pump. just to make sure, i disconnected the fuel line coming out of the fuel pump, before the fuel filter. Checked the pressure there, same thing happened. went to 45 psi when the fuel pump was running... then shot to 0 after the pump turned off.
if the FPR is leaking, it would bleed back slowly. but, I eliminated the FPR by connecting the gauge right after the pump.
Good Luck
if u can do those tests, itll help you a lot
Since it bled back SO SO fast, i KNEW it was the one-way check valve in the fuel pump. just to make sure, i disconnected the fuel line coming out of the fuel pump, before the fuel filter. Checked the pressure there, same thing happened. went to 45 psi when the fuel pump was running... then shot to 0 after the pump turned off.
if the FPR is leaking, it would bleed back slowly. but, I eliminated the FPR by connecting the gauge right after the pump.
Good Luck
if u can do those tests, itll help you a lot