VACUUM HOSE DIAGRAM FOR 1988 JEEP WRANGLER 4.2 I6?

its laying around the engine its a black vacuum hose . in some models they dont use that connection an the connector is capped over with a rubber cap

you can find what you need at your local library, they can show you what books to look up, and even print the information for you, normally for about 10 cents a copy.

try chiltons I got the haynes and the diagram is too hard to follow

Always refer first to the factory vacuum diagram sticker affixed under the hood...

1988 Ford Truck F150 1/2 ton P/U 2WD 4.9L FI 6cyl



Fig. : Vacuum diagram-1987 F-Series, all engines


Hope this solve it (remember comment and rated this).

Autozone.com, register for free repair info

The powdery black substance tells me that your egr valve is not working.And that is operated by the vacum sysem.The pipe has probebly come of the EGR valve.

Haynes manual has a diagram. Main important hookups are to power brake booster, fuel pressure regulator and map sensor. also need a connection to a/c controls inside drivers compartment and evap system canister. will also need connection to egr valve solenoid if you have one. as well as pcv on valve cover (or ccv which replaces pcv on some)

It does sound like a vacuum leak. Get a can of WD-40 and start spraying around the carb. It will rev up, and U can pin point the loose vacuum hose, are crack vacuum hose.

a right angle pipe coming out from the top of the valve cover with a rubber hose attached. if you it out, shank it! it should sound like a mabble inside of it.

check your fuel pump relay and your ignition switch those numbers you gave for voltage are not right, please recheck that you have a ground and 12volts at the pump while cranking please rate -jeff