1999 Mazda 626 Q&A

1999 Mazda 626 Question: idle bad

advance auto told me a vacum leak but today i check under my car all over cudin feel no air or leaks idk were it cud be but the hissin really loud it lik comen frm the left side of the intake manfold but idk wat to do or weat is -
Answer 1
Look at you intake air boot that goes to the Mass Air Flow Sensor. These often split open. Also check your PCV hoses. ( large hose that comes off the valve cover ) -
Related Items:
i need help on my 99 mazda 626 wen i start it up it good till car gets warm once car warms up and i press the gas peddle and once i realse it car lik looses power idle drops to 0 rpms than shakes...
Drove car during the day with no problem except I do know the battery was weak as cold starts were labored and wipers were slower than normal. Started car 4-5 hours later and got two minutes up the...
am alil upset i was workin on that intake gasket all day i finsh still doin it so yea it deff a vacum line leak or something buti feel lik am on mission impossble i cant find dat leak why
made a quick stop, started my car again, then it stopped. it had been idling bad about 1 wk. heard something quietly thump. started the car back after about 1 minute and backed out- steering was ...