My son's truck is running rough and a guy told him it's the aspirator hose on the intake manifold. We've never heard of one, what exactly are we looking for? Or was the guy wrong?
2006-12-17 08:38:22 · 3 answers · asked by Faith 5 in Cars & Transportation ➔ Maintenance & Repairs
He checked all the hoses. They seem to be fine. He's replaced the distributor cap, plugs and wires and it still has a miss. And it is really hard on gas. He has a 306.
2006-12-18 03:15:39 · update #1
Probably NOT wrong, but you never know.
The hose you are looking fore is the hose from the air cleaner assembly to the intake. It is about 3-1/2" in diameter. If there is a MAF sensor instead of a MAP sensor, your friend is most likely correct. You can perform EMERGENCY repair with Duct Tape. Locate the crack or break in the tube and cover it securely, and make certain that there are no air leaks at either end.
If the pick up has a MAP sensor, then there is another issue at hand.
Go here------>
http://autorepair.about.com/library/ts/obd-i/bl-dtcs-79.htm
...and scroll down below the chart for a discussion of the procedure for retrieving the trouble codes. Disregard the requirement for a meter. It isn't necessary. Sit in the driver's seat and watch the "Check Engine" light. It will flash out the codes similar to Morse code. Don't space off. You have to pay attention. If you lose count, or if you aren't sure you got it all, simply turn the key off for > 20 seconds and start over again.
If you have disconnected the battery, there is a good chance that there won't be any codes stored until it is driven again and the fault is recognized.
Good Luck and Merry Christmas
2006-12-17 08:58:59 · answer #1 · answered by Ironhand 6 · 1⤊ 0⤋
He was talking about the breather valve and hose that connect between the valve cover to the base of the carburetor or into the intake manifold. Look at the valve covers on both sides of the engine one should have a hose connected to a breather valve.
It could also be a vacuum leak so check the smaller rubber hoses while you've got the hood up.
2006-12-17 16:48:31 · answer #2 · answered by HENRY 2 · 0⤊ 0⤋
It's a vacuum line.
Look for one that got unplugged, or cracked.
Usualy hooks up to a vacuum tree on the intake manifold near the carburator\TBI.
Could be EGR too.
2006-12-17 16:43:44 · answer #3 · answered by Mr. KnowItAll 7 · 0⤊ 0⤋