HELP***press gas...rpms go...car doesn't..sometimes??
#1
TECH Resident
Thread Starter
Join Date: Jun 2005
Location: Texas
Posts: 932
Likes: 0
Received 0 Likes
on
0 Posts
HELP***press gas...rpms go...car doesn't..sometimes??
I just got back from my lunch break and on the way back my car started doing something crazy. When I put it in drive the car takes off fine, but when I am just cruising along and then give it about half throttle the rpms jump up as expected but the car doesn't go any faster?? It happened when I pressed the gas hard enough for a down shift and when I just eased into it...What the hell? Is my tranny going out? Please help, something is wrong!
#4
Moderator
iTrader: (11)
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,604
Likes: 0
Received 6 Likes
on
6 Posts
That will happen when the converter unlocks into a
low-multiplication, but not-well-coupled area of
operation.
But if it just started happening look to low fluid first,
maybe a converter slip issue at low line. If you can
get hooked up to a decent scan tool you can determine
if the slip is unlocked or locked converter, in the
converter or the frictions, etc.
low-multiplication, but not-well-coupled area of
operation.
But if it just started happening look to low fluid first,
maybe a converter slip issue at low line. If you can
get hooked up to a decent scan tool you can determine
if the slip is unlocked or locked converter, in the
converter or the frictions, etc.
#5
10 Second Club
iTrader: (8)
Join Date: Apr 2004
Location: Portsmouth, VA
Posts: 2,247
Likes: 0
Received 0 Likes
on
0 Posts
that sounds reasonable. i'm actually having an issue that sounds like this myself (from my other post https://ls1tech.com/forums/automatic-transmission/543142-converter-efficiency.html)
what should be done to look at this? I've logged on HPT and cannot visually tell what's happening. But under light throttle I can see a slight RPM decrease when it locks up.
would 70-80mph and and increase from 20-40% throttle be defined as an area low "low multiplication"? Thats where I notice my issue. How can i attack that on my TCC tables? I only notice it in 4th gear.
what should be done to look at this? I've logged on HPT and cannot visually tell what's happening. But under light throttle I can see a slight RPM decrease when it locks up.
would 70-80mph and and increase from 20-40% throttle be defined as an area low "low multiplication"? Thats where I notice my issue. How can i attack that on my TCC tables? I only notice it in 4th gear.
#7
10 Second Club
iTrader: (8)
Join Date: Apr 2004
Location: Portsmouth, VA
Posts: 2,247
Likes: 0
Received 0 Likes
on
0 Posts
could be a similar issue. if what I'm explaining doesnt help define what you need help on then you need to explain more than what you're saying. I'm asking for a way to go about fixing this. maybe it would be something you need to do??
Trending Topics
#8
TECH Resident
Thread Starter
Join Date: Jun 2005
Location: Texas
Posts: 932
Likes: 0
Received 0 Likes
on
0 Posts
Dude, I posted all I know, I don't have $800 tuning software that I can hook up to my car. I am a struggling college student. I posted exactly what happened in my original, thread starting post.....if anyone needs anymore info to help diagnose the problem PLEASE just let me know as I am very worried right now and do not know what else to tell ya'll.