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Chevy Lumina Hesitation of engine

7 messages,  Last post on Mar 25, 2009 at 2:41 PM

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What is this discussion about? Chevrolet Lumina, Scheduled Maintenance, Sedan

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#2 of 7 wzbzjmn by wzbzjmn May 26, 2008 (1:20 am)
I have a 1991 chevey Lumina/euro 3.1 engine. I am having trouble with the engine sputtering like it isn't getting gas. This problem is intermittant and seems to happen when I decelerate. It almost seems like the engne is going to cut off but I just keep pumping the gas and then it goes back to normal. Is this a gas or electrical problem or could it be caused by the temp sensor or any sensor sending the wrong info to the computer. Where do I start.....Help! Replies to this message: fuzz26 (Jun 16, 2008 9:00 am)
#3 of 7 Re: wzbzjmn [wzbzjmn] by fuzz26 Jun 16, 2008 (9:00 am)
Replying to: wzbzjmn (May 26, 2008 1:20 am) check you MASS airflow sensor, map sensor and or see if your air plenum on top the engine is cracked or not
#4 of 7 engine dies by tdsun Oct 01, 2008 (8:47 am)
Our daughter owns a 1990 Chevy Lumina, with 25,000 miles. When it shifts into passing gear, it dies. Other than that it works great. Any thoughts? thanks.
#5 of 7 Engine miss at certain speeds. by wtavcar Nov 06, 2008 (6:04 am)
I have a 1999 Lumina LS w/3.1V6. It has 113K km (70k mi). I am in Canada so metric everything. I assume, based what I have read, it has the 4T65-E transmission. Its about three months now that I am having intermittent missing from the engine at certain speeds, namely 70 km (42mi) or higher.   With a cold car all is good. After a few miles it starts to intermittently miss and at certain circumstances. It is used mainly for work commute and is rarely used over 50 mph. At below 70kph (42mph) no problems. Starts are good, shifts are good (with the occasional hard shift) nothing exciting. When I get to the end of the 70k zone and accelerate gently, primarily uphill onramps, it will occasionally jerk numerous times, shift up then silence.   I brought it to a transmisison shop. They drove it and said it shifted fine. They recommended a fuel filter change and plug/wire verification. Since it was the cheapest route I did. New fuel filter and plugs/wires were checked. It "seemed" to respond better to shifts so i thought case closed. That was 2 weeks ago. Yesterday it did it again.   btw, The transmission oil was flushed at roughly 75k km (46.5k mi). It was done at a Penzoil location. They did NOT change the filter. A machine was plugged into the transmission cooler lines at the rad. They pumped out the old and replaced it with new oil. They said the filter was good for 100k km (60k mi).   After some "googling" I came accross something that "seems" to point to the problem.   At "autos.msn.com" there was something about the 1997 Lumina that talks about "can cause the vehicle to loose TCC operation or feel like an engine miss while driving between 40 and 60 mph." It talks about a TCC Regulator Valve. The 1999 write-up talks about a Transmission Pressure Control Solenoid (PCS). With all I have read 2 TSBs were mentioned:   00-07-30-002B & 02-07-30-022B   Other items I did read was that another filter/oil change might help since it may be a sticking internal valve and a filter change (since it was never done) would help. I called GM and a tranny mech. pointed out that oil/filter change would not help.   I went as far as got my hands on a engine computer, to check if any codes were registered. Nothing   I am at a standpoint. The car is well maintained and changing the car at this point is out of the question (if possible). Dropping in a new tranny (~$2000) would cost more than the value of the car. With it's low mileage for its age it's a shame to dump it.   Any advise would be GREATLY appreciated.   Thanks Replies to this message: tdsun (Dec 16, 2008 2:40 pm)
#6 of 7 Re: Engine miss at certain speeds. [wtavcar] by tdsun Dec 16, 2008 (2:40 pm)
Replying to: wtavcar (Nov 06, 2008 6:04 am) Lumina - we have had our daughter's car in the shop since late August and just received it back. It too had engine stall once reaching passing gear. After much trial and error and $1450 it is working again. The mechanics discovered 4 of 6 fuel wires were shorting out once it warmed up. Hope this helps you.
#7 of 7 please help, im lost by guttergurl Mar 25, 2009 (2:41 pm)
im so lost with my pain in the butt car. can someone please help me.... how do i find an air leak on my 1996 lumina ls? i can hear it leaking from somewhere but not sure where and also if i keepp the car at the same speed for more than maybe ten seconds it feels like its hesitating

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