It seems everyone is having these problems... i didnt start installing all my stuff yet, but it seems lately while im driving and decide to floor it for some reason, the car hesitates at whatever rpm its at, the speedometer freezes, and the engine makes a loud "WAAAAAAAAHHHHHHHH" noise. This doesnt sound good at all, could i have done something wrong, I havent modified the car that much yet, no major installations...

It seems that if i take my foot off the gas a little bit and not completely flooring it, it drives somewhat better, but still has bad acceleration... what could be causing this, not enough fuel going to the carb? a congested exhaust?


Thanks,

Jim

 

What have you done to it?

 

took off the air pump and some emissions stuff, but this problem has occured before that too, it went away but now its back double what it was... so i dont think the emissions had anything to do with it...

 

i forgot to mention that i replaced the cat like everyone said before cuz i was having problems accelerating from the start, that seemed to fix that, but now i dont get why it wont accelerate while im driving!!!

 

any one have any ideas, i myself think it is either the tranny or fuel pump...

 

carb tuning?

 

Fuel pump
Possibly bad gas.

Both of these happened to me. In fact, bad gas ruined my fuel pump.

 

alright im gonna take a ride up to r&s and get a fuel pump, i have a feeling thats what it is, not to mention that would be good for my new card. New filter and some hoses too...

I have been using Shell V-power premium gas, maybe that could be it, cuz that stuff is suppose to remove engine gunk, which could be unsealing some parts!

 

Can you describe the problem better? Or get a video? I'm not totally sure what's going on there...

 

i think it is the fuel pump, i cant really describe the symptoms any more. The car basically doesnt go when i floor it, it just like throughs itself in "neutral" and sounds like im redlining it to death, even if im at say 3 rpms...

 

you sure you don't have the carb out of adjustment or maybe the timing is wrong? Have you checked for vacuum leaks? I posted on your last post about this problem and if I remember correctly, I told you not to go out and start spending money on parts because someone thought it might be the problem. I'm not trying to be rude, but you have to understand1 important thing. We depend on you to diagnose and tell us what you found. Based on that diagnosis, we try to help you discover the problem. You can't just by a new cat because 1 or 2 people said that caused their car to run like that. You have to verify it. For the cat that you replaced the verification was easy. All you had to do was watch the cat to see if it started glowing red, which would indicate that it was clogged. Instead of doing that, you went out and bought one only to discover that you wasted your money because that wasn't the problem. Like I said earlier, I'm not trying to be rude, I just don't want you spending money on random ideas. I'm pretty sure that you don't have the money to throw at it indefinately. There are a lot of things that could cause your particular problem. It could be fouled or incorrectly gapped plugs. A few wires could be burnt and grounding out on the exhaust. The pcv valve could be plugged. It could be a problem with your distributor, and yes it could even be your fuel pump. Eliminating these possibilities 1 by 1 will allow you to fix the problem and have a great running ride.

 

I don't really think a new fuel pump is going to help anything. From your brief description of the problem it kinda sounds like the engine is revving but the car is not moving?

'The car basically doesnt go when i floor it, it just like throughs itself in "neutral" and sounds like im redlining it to death, even if im at say 3 rpms...'

You have an automatic transmission? That used to work without slipping?

 

What i meant b4 when i said replaced the cat, i meant i put a straight pipe thru...

"There are a lot of things that could cause your particular problem. It could be fouled or incorrectly gapped plugs. A few wires could be burnt and grounding out on the exhaust. The pcv valve could be plugged. It could be a problem with your distributor, and yes it could even be your fuel pump. Eliminating these possibilities 1 by 1 will allow you to fix the problem and have a great running ride."

Well its a good thing i picked up almost everything, ive got new plugs and wires, new pcv valve, my dads putting in one of his vaacuum distributors, and i just picked up a new fuel pump at the store. I know you might think it was a waste to get all that, but I wanted to get performance stuff for my car anyways... what ill do is Ill test each one, one by one, go out for a ride, and if that doesnt solve it, ill move on to the next item. The only reason im putting money into it is cuz ive saved for 10 years since i graduated from elementary school and my savings account just opened up, so i have some money to spend, some for college etc... Thanks for the advice
----------
Yeah i have an auto tranny, and it used to work with out slipping, but my dad, hes not used to newer cars, he works mostly on his nova, and when he took the carb off it broke the tv cable... i had that replaced, and had the tranny overhauled(minor damage)... but it was running golden after that, now its back again, and no we did not work on the carb since then

 

Yea, that sounds nothing like a fuel pump problem, how on earth did you come to that conclusion?
I would have guessed tranny also.

 

idk i just kind of figured that maybe the WAAAAAAHHHH noise i heard was the secondaries on the carb opening up and the reason it wasnt accelerating was that not enough fuel was going to it, so all it was doing was sucking in air

 

What does your tach do when you have this problem....the motor just makes tons of noise like your redlining but your tach stays the same?

I would have guessed your tranny based on your first post but you said your tach is not moving but your motor sounds like its still revving to the moon? Well is it or is not?

 

the second i put my foot to the floor, it makes a loud waaaaahhhhh noise. say i was going 30mph and i floored it, the speedmeter would stay at 30 at not go up. Say the tach was at 3, and floored it, the tach would remain at 3. The car sounds like im at 6 on the rpms, but the tach stays at 3 and i dont accelerate at all...

i cant figure it out, my only guess now is the tv cable is not correctly making the transmission drop down a gear and the secondaries are putting too much strain on the current gear to make it change or accelerate.... thats my new hypothesis...

 

Yes, it is hard to diagnose a "waaaaahhh" noise.

Place your selector in 2 and floor it, preferably up a hill. Tell us what it does. Compare the sound it makes when it's actually AT 5000 rpms to the 'waaaahhh' noise.

 

Sounds like tranny slipping.

 

yeah, i diagnosed it myself, lol, what i did was i drove down the street with ;my hood off... The wah noise is the secondaries opening up. The reason they are making that noise is because the tv(kick down) cable is broken, and when i floor it, its suppose to drop down a gear which it isnt doing. Thats why the tach freezes and i get the loud waaahhhh noise, cuz its sucking in so much air, but its not getting enough power to that certain gear... well i know what they problem is, how hard is it to replace the tv cable(id rather not send away to get it done again too much $$$)? btw i already had it overhauled like i said, i just hope theres no tranny damage again...

 

Well, most of the time, but not sometimes "waaaaahhhh" noises are almost always the thingamajig under the doohickey..

lol

But seriously, glad you found it - hope your trans is ok.

 

trans is good, gotta run a new cable thank goodness no damage there... i really dont know how to describe the noise... picture a vacuum cleaner sucking up something on a carpet and then it gets stuck to the carpet... the noise the vacuum makes is the noise the secondaries are making...

 

hmm, no, that doesn't sound right at all.
I think you're right about the TV cable, but I don't think the secondaries have anything to do with it. But anyway, you know what you have to do, replace that cable, set it up right, and then see what it's like.

 

o i know the secondaries dont have anything to do with it im just saying thats what the waaaahhhh noise was that i couldnt figure out

 

Fix the TV cable. You'll kill your transmission if you keep driving it before you do.

The "waaaaaaaaaahhhhhhhhhh" sound is the secondaries. Typical q-jet.

When it still does it after you fix the TV cable, you need to fix the q-jet bog - also typical when not adjusted/operating properly, particularly the choke pull-off.

 

how hard is it to replace the tv cable, id rather not send it away to be fixed... is there any specific brand i should get... i tried tampering with the one thats on there, and its completely shot... i followed the directions in the tech article, adn when the person is supposed to put their foot to the floor in the car to make it adjust itself, it doesnt do that, it just stays at whatever posistion i had it at...