Since I replaced my rad my CRX has been so slow to acceserate. I have no idea what is going on, I have an auto transmission CRX and when I hit the gas it goes to like 2K RPM and sorta sites there for a few seconds and then kicks in like normal. It is really pissing me off becuase sometimes I have to take a quick turn or something to beat a red and I go so slowly through the intersection that the light has already changed and cars are coming the other way.

Anyone know what this might be. And if you do can you tell me how to remedy the problem?

Thanks
CRX Forum

 

might be a bad tranny...

have your tranny looked at

 

I dont think you're slipping.. with 5000 posts on here i assume you would know if it was slipping.

First thing, check if your kick down is working. Because if its not, it will be at such a high gear of course it won't move you. Unfamiliar with the automatic's to tell you exactly how to fix it but i'm sure a secondary set of sensors will shift it to a lower gear after you've had your foot to the floor flooding it with gas for a few seconds.. it just does it way late. Sounds about right for what you described.

Anyone work on 88-91 automatic trannys?

 

It is definately not slipping at all. Also it doesnt over rev or anything in any other gears. I have been in 2point2's Civic with auto tranny and his is slipping and over revving like mad and my CRX does nothing even close to that. I also have over 100K less kilometers than the does.

When I replaced my rad I leaked out a lot of tranny fluid. But when I had the car back on level ground I checked the levels of the fluid and it said that it was fine. I drove it around for like a day and checked the tranny level again and it still said it was full engouh. Like 1/2 full. Do you think that if I topped off the ATF it would solve the problem? I have 2 brand new bottles of ATF. I guess I will check that out tommorow and top it off and see what happens.

CRX Forum

 

sounds like you might be running lean... that is why you feel hesitation... i would check on the fuel filter and then the injectors..

 

Yeah, put some 550s in there....

So back to the problem, try topping the fluid off. It sounds like low fluid in the torque converter

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NikoZai &raquo;</TD></TR><TR><TD CLASS="quote">First thing, check if your kick down is working. Because if its not, it will be at such a high gear of course it won't move you. Unfamiliar with the automatic's to tell you exactly how to fix it but i'm sure a secondary set of sensors will shift it to a lower gear after you've had your foot to the floor flooding it with gas for a few seconds.. it just does it way late. Sounds about right for what you described.

Anyone work on 88-91 automatic trannys?</TD></TR></TABLE>

Also If the kickdown isn't working, it might give a hard slam into gear when it does go in, versus the slushiness of low fluid. And no one works on those transmissions because they really don't go bad.

 

well the rad has a built in tranny fluid cooler.

is there any way to burp air out of the tranny system?

 

I have no idea if there is a way to burp it or not. But the rad does have the tranny cooling part in it

I guess Ill top it off before I head out into town to go to the bank and see what happens.

CRX Forum

 

Are you using a DPFI engine? If so, laggy acceleration could be caused by a worn vacuum diaphragm used to open the tandem air valve.

This valve doesn't open until the engine coolant has reached 160 degrees and RPM is above 1500 [auto tranny] or 2000 [manual].

Symptoms are laggy acceleration, similar to that of a restricted exhaust.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DaX &raquo;</TD></TR><TR><TD CLASS="quote">Are you using a DPFI engine? If so, laggy acceleration could be caused by a worn vacuum diaphragm used to open the tandem air valve.

This valve doesn't open until the engine coolant has reached 160 degrees and RPM is above 1500 [auto tranny] or 2000 [manual].

Symptoms are laggy acceleration, similar to that of a restricted exhaust.</TD></TR></TABLE>

Do you have any instructions on how to fix this DPFI problem. I have DPFI as my CRX is a DX and topping off the ATF didnt seem to do anything to help me out.

Thanks
CRX Forum

 

If you take top off of the air chamber case that sits on top of your throttle body, you can see the tandem air valve. It looks like a throttle plate under a screen. When you snap the throttle open, this valve is slower to open...because it's controlled by vacuum. If the dashpot/vacuum diaphragm is worn that controls this valve, it will open very slow, or not open at all, causing the laggy acceleration and restriction.

I'd check the dashpot with a vacuum leak down tester and if it fails the leakdown, replace it. A new Tandem Air Valve dashpot is about $45 from Honda.




Modified by DaX at 9:31 AM 10/28/2004

 

well you learn something new everyday...

 

Did any of you read ther first post? He says he replaced his radiator. He has an automatic. (hint hint...)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mikerbike &raquo;</TD></TR><TR><TD CLASS="quote">Did any of you read ther first post? He says he replaced his radiator. He has an automatic. (hint hint...)</TD></TR></TABLE>

hint hint? Well tell us what we're missing here.

 

well i am gonna have to say to check you fluid level when you car is warm not the engine but the tranny cause if you let you car sit all of the fluid will go to the pan. i believe it says to check when warm... if you already said that tranny fluid leaked out than replace what came out. or dont be cheap and get it serviced. they will fill for you. oh did you by chance OVERHEAT your car before you replaced your rad??????????? maybe you did.. than you have other problems

 

scastillo is on the right track. I don't know what the problem is, but when I replace radiators on civics they come with a transmission cooler in the lower tank. CRXforum said that when he would push the pedal, it would go to 2K rpm and sit there for a few seconds and then kick in like normal. That sounds like the eigine is doing it's job fine. Do what scastillo said. You are probably low on ATF.

Oh yeah, CRXforum, maybe you should take it easy on the running of red lights.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mikerbike &raquo;</TD></TR><TR><TD CLASS="quote">Oh yeah, CRXforum, maybe you should take it easy on the running of red lights.</TD></TR></TABLE>

No I dont run red lights. You know when you are at an intersection turning left and you have to wait for the other cars coming from the other direction to pass before you can turn? Well when you waited as long as possible the light changes to yellow. So when that happens that allows me to get out of the intersection and turn. But my acceleration is so slow that by the time I make the complete turn the light has changed from Yellow to red and other cars are already coming from the side.

Oh and the problem seems to have gone away with me doing pretty much nothing. Maybe it was just a bad batch of fuel or something becuase I didnt do anything to my engine.

CRX Forum

 

change transmission fluid, filter.

 

Yeah, make sure you check when warm.

The only auto that I have is a 90 Golf (sorry .. bad word) and it says check after driving about 10Kms, when quite warm.

I guess another option is going to good auto tranny place ... a small price for a tranny check and fluid change. I usually let the experts take care of the auto tranny .. too complicated for me, plus last time I tried to change the filter, i cross threaded a bolt, and $2500 later new tranny (at least it was on its way out....)

Jay