Car Wont Rev Past 3500RPM?!?!? PLEASE HELP!!!

BowTie Eater 5 Liter · 08-21-2001, 11:52 PM

My Car Wont Rev Past 3500, But I Can Run It Up To 5000, Then When I Shift, It Boggs.

In Neutral It Goes to about 3500rpm & Then PUT-BOOM-BANG.

Everyone Who Has Driven It Says Its A Fuel Problem, So What Do You Think? How Can I Fix This???? Will I Hurt My Motor If I Race It As Is This Friday? Should I Just Stay Under 3500 While Driving Until I Get This Fixed???

Thank You

Kris.....

------------------
1988 Mustang GT, T-5
3.08's, No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe, K&N Air Filter (Stock Air Box), Removed Air SilencerMy Stang
My Site (Not Done Yet)

Rick 91GT · 08-22-2001, 07:51 AM

NEVER RACE WHEN YOU ARE HAVING PROBLEMS OR BE PREPARED FOR THE CONSEQUENCES

If you have a fuel pressure gauge, what does it say at idle, and what does it say at 3500. It could be your fuel pressure regulator. When was the last time you changed the fuel filter?

------------------
Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension, SPEC stage III clutch, Lakewood SFI bell, S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! <B

PWR_RYD93 · 08-22-2001, 10:55 AM

Rick is a wise man. NEVER race it if something is wrong. What's the point? If it won't rev past 3500 you're not going to win a race anyway. Why take a chance of more damage?

I agree, check your fuel filter. Sounds like you're leaning out under load. Fuel filters are cheap and easy to replace. Might as well do a full tune up (new plugs, cap and rotor, plug wires) if it's been a while. Good luck.

------------------
Craig
Supercharged 93 GT
Basically stock 93 Cobra
"I drive way too fast to worry about cholesterol!"

jimberg · 08-22-2001, 11:55 AM

That's a pretty major problem, Bowtie. The very first thing I would do is check the codes. I wish EVERYONE would do this before even posting a question. It's such an easy thing to do and can tell you a lot.

Did you remember to put the SPOUT jumper back in after checking timing? Is your distributor loose, possibly? Tell us what you've done to the car so far.

I can't even believe you asked if it was okay to race or not.

------------------
351W 89 Mustang GT Convertible

BowTie Eater 5 Liter · 08-22-2001, 07:01 PM

today, driving home from work, i pushed in the clutch & revved it, & it revved!!! could it be bad gas??? im running on 87 & everyone tells me to run on 94.

New fuel filter, new waterpump, new oil, new sparkplugs, new alternator.....

HOW DO I PULL CODES?????

------------------
1988 Mustang GT, T-5
3.08's, No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe, K&N Air Filter (Stock Air Box), Removed Air SilencerMy Stang
My Site (Not Done Yet)

spike · 08-22-2001, 07:21 PM

Did you get moisture in the distributor? My car has done that before and it was from a couple little drops of water in the distributor.I wiped it clean and it ran fine again.

08-21-2001, 11:52 PM	#1
BowTie Eater 5 Liter Registered Member Join Date: Nov 2000 Location: Maple Ridge B.C. Canada, The Best Place In The World Posts: 871	Car Wont Rev Past 3500RPM?!?!? PLEASE HELP!!! My Car Wont Rev Past 3500, But I Can Run It Up To 5000, Then When I Shift, It Boggs. In Neutral It Goes to about 3500rpm & Then PUT-BOOM-BANG. Everyone Who Has Driven It Says Its A Fuel Problem, So What Do You Think? How Can I Fix This???? Will I Hurt My Motor If I Race It As Is This Friday? Should I Just Stay Under 3500 While Driving Until I Get This Fixed??? Thank You Kris..... ------------------ 1988 Mustang GT, T-5 3.08's, No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe, K&N Air Filter (Stock Air Box), Removed Air SilencerMy Stang My Site (Not Done Yet)

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08-22-2001, 07:51 AM	#2
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	*NEVER RACE WHEN YOU ARE HAVING PROBLEMS OR BE PREPARED FOR THE CONSEQUENCES* If you have a fuel pressure gauge, what does it say at idle, and what does it say at 3500. It could be your fuel pressure regulator. When was the last time you changed the fuel filter? ------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension, SPEC stage III clutch, Lakewood SFI bell, S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! <B

08-22-2001, 10:55 AM	#3
PWR_RYD93 Registered Member Join Date: Sep 1998 Location: IL Posts: 1,155	Rick is a wise man. NEVER race it if something is wrong. What's the point? If it won't rev past 3500 you're not going to win a race anyway. Why take a chance of more damage? I agree, check your fuel filter. Sounds like you're leaning out under load. Fuel filters are cheap and easy to replace. Might as well do a full tune up (new plugs, cap and rotor, plug wires) if it's been a while. Good luck. ------------------ Craig Supercharged 93 GT Basically stock 93 Cobra "I drive way too fast to worry about cholesterol!"

08-22-2001, 11:55 AM	#4
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	That's a pretty major problem, Bowtie. The very first thing I would do is check the codes. I wish EVERYONE would do this before even posting a question. It's such an easy thing to do and can tell you a lot. Did you remember to put the SPOUT jumper back in after checking timing? Is your distributor loose, possibly? Tell us what you've done to the car so far. I can't even believe you asked if it was okay to race or not. ------------------ 351W 89 Mustang GT Convertible

08-22-2001, 07:01 PM	#5
BowTie Eater 5 Liter Registered Member Join Date: Nov 2000 Location: Maple Ridge B.C. Canada, The Best Place In The World Posts: 871	today, driving home from work, i pushed in the clutch & revved it, & it revved!!! could it be bad gas??? im running on 87 & everyone tells me to run on 94. New fuel filter, new waterpump, new oil, new sparkplugs, new alternator..... HOW DO I PULL CODES????? ------------------ 1988 Mustang GT, T-5 3.08's, No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe, K&N Air Filter (Stock Air Box), Removed Air SilencerMy Stang My Site (Not Done Yet)

08-22-2001, 07:21 PM	#6
spike Registered Member Join Date: May 1999 Location: ft.worth, TX USA Posts: 92	Did you get moisture in the distributor? My car has done that before and it was from a couple little drops of water in the distributor.I wiped it clean and it ran fine again.