1997 Monte Carlo Z34 Posted February 3, 2004 Report Posted February 3, 2004 Subj: 1997 Chevrolet Monte Carlo Z34 with3.4 DOHC Date: 2/3/2004 3:01:19 AM Eastern Standard Time From: ANGELDALE3AND8@wmconnecy.com Last night just out of the blue the service engine soon lite came on and stayed on. It har a little miss at first but that has cleared up. Could it have gotten some bad gas? I am the third owner and chang all fluids and filters reguraly.Ihave only had one problem with the car and that was the acessory belt tensioner 1500 miles ago.It now has 97756 miles on it but rides drives and looks like new. Aam going to change the timeing belt and all related parts this month and repaint it this spring. Any way am going to auto zone they say they can read the code but I dont have alot of faith in them.Any and all input into this matter from you will be greatly appreciated.I have been reading everything I can get on these motors and every posting I can find concerning these cars. Do you have any idea where to start? I parked the car as soon as it came on luckly to be at home when I stayed it and the lite came on, but its 15 miles to have the code read,is it safe to drive it like this all fluids are full and the miss did clear up really acted like it may have had some water in it but lite is still an and I havent tried to move it since then. Well thank you for any input about this matter. Robert and Teresa Flowers Quote
SmokesGTP Posted February 3, 2004 Report Posted February 3, 2004 Driving with the SES light on isn't going to hurt anything. I would get it taken care of as soon as possible but you shouldn't have to park the car especially if it runs fine. Quote
GPRACER Posted February 3, 2004 Report Posted February 3, 2004 If there are no driveability concerns, chances are you may have an evaporative emmissions code set. Check your fuel cap, lots of times I see vehicles with the ses light on and the gas cap left off last time car was fueled. Quote
JS91Z34 Posted February 3, 2004 Report Posted February 3, 2004 did that light come on during the mirfiring you described? if it did, it the computer probably sensed the misfire and set a DTC and kicked the light on. just a thought! Quote
1997 Monte Carlo Z34 Posted February 4, 2004 Author Report Posted February 4, 2004 The light came on when I started it 5 min or so after getting home and it missed slightly.The next morning it cleared up and 1/4 mile later the light went off and 75 miles later still no light or miss.Put Exxon 93 octane and dry gas and injecter cleaner in .They scanned it it was showing no codes and is back to her screaming self. Think I got some watery gas. Thank ya all for the input. Thanks again , Herman Quote
GPRACER Posted February 4, 2004 Report Posted February 4, 2004 Who "scanned" it? If the light was on should be a history code or a freeze frame/failure record. even if the light is now out. Quote
EurosportZ34 Posted February 6, 2004 Report Posted February 6, 2004 My SES light on my Z34 comes on alot when the car has warmed up and I've driven it for a while. But that is it, sometimes it just goes off. Usually when I restart my car it doesn't come on right away. If it's anything like my problem I wouldn't give it too much thought. Quote
1997 Monte Carlo Z34 Posted February 7, 2004 Author Report Posted February 7, 2004 The problem was the fuel pump, new one went in today with new filter. Has correct pressure now and light went out as soon as it shifted into 4th.Its starting better, Sounds better, revs quicker off idle also after 50 miles or so both tail pipes are already turning grey inside. It was telling its self it needed more fuel due to lack of constant fuel pressure then running to rich. Its running best it has for 1,000 miles or so. (Also changed oil to Mobil one today)Thank you for your input. Oh yes the work was done at Eddies Automotive?Street Machine Specialists. In Jane Lew, WV. Quote
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