1998 Ford Escort vacuum problem caused by melted "boot" or hose that connects PCV valve to air cleaner. All dealers, "experts" swear this is not a part on my escort, yet I have the piece in hand that I removed from the car. I'm just trying to find a part no or proper identification so I know what to ask for?

• Hi, I can help.

• Make sure that little grommet did not melt as well. This should be replaced with the new PCV valve.

• If you have any comments please feel fee to leave them here.
• Hope this helps and thank you for using FixYa.

Regards, Tony

The large end should fit the rubber grommet, so it goes down. The small diameter end should connect to the vacuum line.

they are water lines that heat the throttle body i think.

first thing to do is check for vacuum leaks. grap a can of spray carb cleaner and spray hose connections and elbows while the engine is running. the idle speed will change when you hit a leak with the spray. also clean the IAC valve. Idle air control valve. This device controls the idle speed. then clean or replace the PCV valve. The EGR valve will cause problems like this if it is clogged with deposits.

Time and engine heat will cause it and why not just replace it? It is a pretty cheap repair. Hope this helps.

check vacuum leaks special idle valve to the pcv valve

The PCV valve can be located in several places. The most common location is in a rubber grommet in the valve cover. It can be installed in the middle of the hose connections, as well as installed directly in the intake manifold.

Once the PCV valve is located, make sure all the PCV system hoses are properly connected and that they have no breaks or cracks.

Remove the air cleaner and inspect the air and crankcase filters. Crankcase blowby can clog these with oil. Clean or replace such filters.

Oil in the air cleaner assembly indicates that the PCV valve or hoses are plugged.

Make sure you check these and replace the valve and clean the hoses and air cleaner assembly.

When the PCV valve and hose are in satisfactory condition and there is oil in the air cleaner assembly, perform a cylinder compression test to check for worn cylinders and piston rings.

Guess what? This might be easy.
Escorts have a common problem, (so do a lot of cars), with PCV hoses that get mushy. The tube that connects the PCV comes from the top of the engine, off a vacuum tree at the rear (passenger compartment side). It starts out with a rubber elbow that connects to a plastic tube. This goes toward the front of the engine, over the top. Follow this tube to the front of the engine. At the end is the PCV , (PCV stands for 'positive crankcase ventilation' ), valve. Frequently the rubber elbow deteriorates until it allows a vacuum leak. This loss of vacuum messes up fuel and idle control but is not much of a factor above idle. To find a vacuum leak that is not obvious, with the engine idling, spray carburator cleaner around the intake and vacuum hoses, a bit at a time. If a significant leak exists, engine idle will change or the engine will smooth out. Pinpoint the leak.
If no leak can be found, the IAC, (idle air control valve), could be the problem. Can you get the engine to run okay by opening the throttle slightly? When you do this you are doing what the IAC is supposed to do. If you suspect the IAC, go buy one and put it on yourself. it is easy to replace and you can get one for about the same as the cost of professional diagnosis. If that does not fix the problem, then at least you have eliminated that and you have a new part! For more tips like this, check out my site, trustywrench.com. Good Luck!

Go to a Ford dwealer parts dept, this is a dealer only part, they have parts breakdowns, they can show u a picture and then u will be able to ID the hose the PCV sits in.

Hi , i have a 1995 Escort with 1.9 4 cyl engine , at cold start the engine revs ok but as it get warmer it start to idle rought and die , with a scantool the o2 sensor always reed lean at idle , after checking fuel pressure , air mass meter , EGR valve , and potential vacuum leak at intake and hoses , its the PCV valve that give me that problem , as i remove the pipe with the valve there was a whissle noise comming from it , when i block the valve at its tip the whissle noise stop the engine revs smooter and the o2 reads normal , i replace the PCV and its idling good .