2000 rpm missing problem

ols0051 · 09-18-2002, 09:23 PM

what would cause my engine to hesitate right at 2000 rpm,never below or past 2k? checked all the usual things.could it be the distributer?(a bad tfi mod)???Weather conditions don't seem to matter,It does it only about the 5th time it passes that rpm?Sometimes more often.

drtbiker · 09-18-2002, 09:40 PM

well that happen to me and it was just one of the hoses going to the upper intake, it would only do it sometimes as well..... i am not sure maybe some sort of vacum leak......
later

ols0051 · 09-18-2002, 09:53 PM

I've had the intake off a few times and all the vacuum hoses seem to be on snug.Some of them could try to clamp tighter?Can't do a burnout in reverse because I have to do all I can to keep it in reverse just to back out of the driveway.(time to get that tremec).

09-19-2002, 06:30 PM

When is the last time you've changed your fuel filter? It very well could be something that easy. If you replace that and still have the problem, then I'd go with the basic tune-up stuff like replacing the cap/rotor/spark plugs/wires....

ols0051 · 09-19-2002, 10:06 PM

I replaced the fuel filter 3000 miles ago,along with the cap,rotor,plugs,msd wires,pcv.etc. The car was completely stock.Any mod i've done didn't seem to make it any different.It almost seems if a injector is getting a bad signal at that rpm.But I would think over time this would have got worse.This has been going on for 3 yrs and 6000 miles?Thanks for the ideas though.

09-18-2002, 09:23 PM	#1
ols0051 Registered Member Join Date: Sep 2002 Location: cent.wis Posts: 203	2000 rpm missing problem what would cause my engine to hesitate right at 2000 rpm,never below or past 2k? checked all the usual things.could it be the distributer?(a bad tfi mod)???Weather conditions don't seem to matter,It does it only about the 5th time it passes that rpm?Sometimes more often. Last edited by ols0051; 09-18-2002 at 09:32 PM..

09-18-2002, 09:40 PM	#2
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	well that happen to me and it was just one of the hoses going to the upper intake, it would only do it sometimes as well..... i am not sure maybe some sort of vacum leak...... later __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

09-19-2002, 06:30 PM	#4
Simi Stang Guest Posts: n/a	2000 RPM missing problem When is the last time you've changed your fuel filter? It very well could be something that easy. If you replace that and still have the problem, then I'd go with the basic tune-up stuff like replacing the cap/rotor/spark plugs/wires....

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09-18-2002, 09:53 PM	#3
ols0051 Registered Member Join Date: Sep 2002 Location: cent.wis Posts: 203	I've had the intake off a few times and all the vacuum hoses seem to be on snug.Some of them could try to clamp tighter?Can't do a burnout in reverse because I have to do all I can to keep it in reverse just to back out of the driveway.(time to get that tremec).

09-19-2002, 10:06 PM	#5
ols0051 Registered Member Join Date: Sep 2002 Location: cent.wis Posts: 203	I replaced the fuel filter 3000 miles ago,along with the cap,rotor,plugs,msd wires,pcv.etc. The car was completely stock.Any mod i've done didn't seem to make it any different.It almost seems if a injector is getting a bad signal at that rpm.But I would think over time this would have got worse.This has been going on for 3 yrs and 6000 miles?Thanks for the ideas though.