HeLp.....I have an idling problem
04-12-2004, 11:41 AM
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Car: 1987 Camaro Z28
Engine: 5.7 HO TPI
Transmission: 700r4
HeLp.....I have an idling problem
I have a 87 Z28 with a 350 TPI. I just put this engine in, replacing another 350. This car is very new to me. Here is my question:
At first my problem wasnt really a big deal.....very occasionaly when I would start the engine, she would jump from 750 idle rpm to 1000. When she got warm all was good.
Now though, she ALWAYS RUNS ROUGH ( in drive or park) and jumps from 750 to 1000 warm or cold. This rpm jump happens only when in nuetral or park not in drive.
She started doing this today after a little time at wide open Throttle.
HeLp PlEaSe I am going crazy with worry over here
Dennis
At first my problem wasnt really a big deal.....very occasionaly when I would start the engine, she would jump from 750 idle rpm to 1000. When she got warm all was good.
Now though, she ALWAYS RUNS ROUGH ( in drive or park) and jumps from 750 to 1000 warm or cold. This rpm jump happens only when in nuetral or park not in drive.
She started doing this today after a little time at wide open Throttle.
HeLp PlEaSe I am going crazy with worry over here
Dennis
04-12-2004, 12:08 PM
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Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Are you saying the idle jumps back and forth while it is in park/neutral or that it will go from 750 to 1000 when you take it out of gear. Is your check engine light coming on, if so, what are the codes?
04-12-2004, 12:17 PM
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Car: 1987 Camaro Z28
Engine: 5.7 HO TPI
Transmission: 700r4
Originally posted by Trickster
Are you saying the idle jumps back and forth while it is in park/neutral or that it will go from 750 to 1000 when you take it out of gear. Is your check engine light coming on, if so, what are the codes?
Are you saying the idle jumps back and forth while it is in park/neutral or that it will go from 750 to 1000 when you take it out of gear. Is your check engine light coming on, if so, what are the codes?
While it is in drive, the rpms don't jump (it stays at 750) but the engine runs noticabley more rough.
No check engine light
Regards
Dennis
04-12-2004, 09:52 PM
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Car: 1987 Camaro Z28
Engine: 5.7 HO TPI
Transmission: 700r4
I checked all the vacuum hoses and plugs and they seemed to be fine.
As to the tv cable......
whats that? And how do I adjust it?
Dennis
As to the tv cable......
whats that? And how do I adjust it?Dennis
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04-12-2004, 10:20 PM
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Car: 1987 Camaro Z28
Engine: 5.7 HO TPI
Transmission: 700r4
Trickster,
Thanks so much, I bet thats what it is. My shifts have been extra hard too so this sounds right. Ill check it in the morning. Ill let you know what happens of it. Can I ask you for a favour though? Could you send me the pic with numbers 832 and up? the directions mention these numbers mostly:hail:
Thanks again
Dennis
Thanks so much, I bet thats what it is. My shifts have been extra hard too so this sounds right. Ill check it in the morning. Ill let you know what happens of it. Can I ask you for a favour though? Could you send me the pic with numbers 832 and up? the directions mention these numbers mostly:hail:
Thanks again
Dennis
04-12-2004, 11:55 PM
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Car: 1987 Camaro Z28
Engine: 5.7 HO TPI
Transmission: 700r4
I think I have a different tranny or something? Because my Haynes manual tells me to do something entirely else to adjust that cable. It tells me to push the cable all the way towards the throttle lever. Your diagrams tell me something else, right?
Either way, my idling prob is fixxed but now I have a new prob. I am experiencing "delayed shifts".
In normal driving circumstances what rpms should I be shifting at? I am shifting at around 3500 to 4000 rpms. And she wont downshift at a cruise unless even when I release the pedal.
any ideas? I am also going to put up a post in the tranny forum, just in case.
Dennis
Either way, my idling prob is fixxed but now I have a new prob. I am experiencing "delayed shifts".
In normal driving circumstances what rpms should I be shifting at? I am shifting at around 3500 to 4000 rpms. And she wont downshift at a cruise unless even when I release the pedal.
any ideas? I am also going to put up a post in the tranny forum, just in case.
Dennis
04-13-2004, 08:33 AM
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Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Hello Dennis,
The information that I have posted here for you is straight out of the GM service manual for an 1989 camaro and the procedure for it is the same on your car. You mentioned delayed shifts, this can be caused by the TV cable. I don't know the precise RPM at which the shifts occur because it varies. I am including a shift speed chart in this post. BTW, when was the last time you changed the filter and fluid in your transmission?
The information that I have posted here for you is straight out of the GM service manual for an 1989 camaro and the procedure for it is the same on your car. You mentioned delayed shifts, this can be caused by the TV cable. I don't know the precise RPM at which the shifts occur because it varies. I am including a shift speed chart in this post. BTW, when was the last time you changed the filter and fluid in your transmission?
Last edited by Trickster; 04-13-2004 at 08:37 AM.
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