If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
95 Saturn SL1 question
Got a 95 SL1 - 1.9 SOHC. My problem is when you rev it up the rpm's float down. This is especially annoying when driving because when you shift (5 speed), if you don't let the rpm's drop before letting the clutch out between gears the car lunges forward. There's no engine light and the engine runs good other than this little problem. I've checked the cable and linkage and they move freely. Any idea's ???? EGR valve ???? Vacuum leak ???? Thanks Brian.......... Kill filters - The Enema Of The Usenet !!!!! |
Ads |
#2
|
|||
|
|||
95 Saturn SL1 question
Get the codes read and verify that there are none stored. Autozone stores
will do it for no charge. Lane [ lane (at) evilplastic.com ] --- Visit my Saturn Car Audio and Performance Page at http://www.evilplastic.com "Brian" > wrote in message ... > > Got a 95 SL1 - 1.9 SOHC. My problem is when you rev it up the rpm's float > down. This is especially > annoying when driving because when you shift (5 speed), if you don't let > the rpm's drop before > letting the clutch out between gears the car lunges forward. There's no > engine light and the engine > runs good other than this little problem. I've checked the cable and > linkage and they move freely. > Any idea's ???? EGR valve ???? Vacuum leak ???? > > Thanks > > Brian.......... > > Kill filters - The Enema Of The Usenet !!!!! |
#3
|
|||
|
|||
95 Saturn SL1 question
I have the EXACT same problem at the moment on a 94 SL1. It only does
it after the car reaches a certain temperature (closed loop I assume). I have checked for vacuum leaks on the EGR, EVAP and brake booster circuits and cannot detect any, although a leak can show up at higher temperatures too. Things that it may be: 1. EGR bleed hole is clogged up causing the EGR to close too slowly when throttle is closed. Only way to check this is to disable the EGR and drive it to see what the RPMs do. It could also be that the EGR valve does not fully close due to carbon buildup or the EGR switch (if vacuum type) is sticky as well. If you are going to test it, best thing to do is disable it, and tap it so that its valve seats well. 2. IAC valve is not closing fast enough and is sticky. The IAC is used to reduce emissions by preventing a fast throttle close condition in order to burn off residual vapors still in the intake. As well, it helps to prevent the RPMs dropping too fast to aid in smoother shifting. 3. Vacuum leaks. This one is something I think would normally show up with a rough idle. My car idles very well, so I think this is low on my probability list. 4. deposits in the throttle body. Again, mine is super clean, so not for me. It will be interesting to see if one of us can solve this though, because I can't find a solution from the dsaturn discussion forums at all. dave mc |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
96 Saturn SC1 Stereo Question | Jeff | Saturn | 2 | August 11th 05 09:14 PM |
'96 Saturn SL1 Rack and pinion assembly/slow acceleration question | murtman | Saturn | 1 | August 4th 05 02:28 PM |
Saturn Releases Teaser Photo of 2007 Outlook SUV | CE | Saturn | 9 | August 4th 05 12:46 AM |
HELP: 1993 Saturn SL1 Window Regulator - READ THIS!!! | B. Case | Saturn | 3 | May 15th 04 12:56 AM |
Saturn Lemons- epidemic flaws, engine cracks, ball joints | misterfact | Antique cars | 0 | January 6th 04 06:04 PM |