Alwick » ’98 V70 GLT… CEL just came on while on the highway. Car started running rough, felt like it wanted to stall at stoplights. I put it into neutral while stopped to keep the rpm’s up and limped home. It idles very rough while in D but not really in Neutral or Park?
Accelerates and drives pretty rough and feels like it’s “stuttering”. It’s very cold here but the car was sufficiently warm and has been running well. Front O2 sensor was replaced a year ago, the rear is original (I think). Literally just passed 102k.
I will take it to the shop this week and have them pull codes, but in the mean time, any ideas? Very frustrated right now.
MadeInJapan » I agree with reading your trouble codes (you’ll have to do this with a code reader- most auto parts places will do this for you- but make sure they give you the codes and you write them down for the forum). Otherwise, a quick check would be to just unplug the MAF sensor and see if the idle straightens out. If this is so, then try cleaning the MAF (Cleaner is sold at auto parts stores- just spray the little element inside of the round section without touching the sensor and let it air dry), but most likely you’ll need a new MAF. I had to replace mine 2 winters ago- and my car exhibited the same symptoms as yours. You can drive your car short distances with the MAF unplugged as it will be in “limp mode,” but you’ll get terrible gas mileage, not to mention, stressing your 02 sensors so best to get it cleaned/replaced ASAP.
Alwick » Thanks for the response, will get that checked out asap. I had similar conditions a couple months ago, mechanic checked fuel system, plugs, throttle components etc. No CEL and no diagnosis. Could that have been the first sign of the MAF sensor going south?
Ironic since I was on my way to IKEA!
Alwick » Turned out to be 2 bad fuel injectors. Completely blocked, kaput.
This would explain my mystery bogging/surging problem a couple of months ago, as they were starting to go then.
Those things are expensive. Should have done more “Italian Tune-ups”.
3 Comments
my 2000 s80 check engine light keeps flashing I have replaced the fuel filter and all spark plugs what could this
MK – yes, I agree this is often the cause. I found oil around the base of #3 plug over the weekend, and have gotten a CE light for a few days. I believe you may have hit on the cause of the light.
And yes, I just replaced my oil cap gasket a month ago because it was leaking oil all over the top of the engine. It was $2.37 at the dealer.
the rubber seal under the oil fill cap gets hard, mleaks oil under cover and fills #5-6 SPARK PLUGS. sEAL COSTS $1-$4 AT DEALER.
some shops may see a gold mine here, and charge you for things that have nothing to do with the problem. Simply clean spark plugsand top of engine of all oil, and wait for the “check engine light to go out on its own.
this is only for ,when, you find oil all over the L/side of the motor under the oil cap, and the seal is hard.