Question about 1988 Jeep Wrangler

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Need the Vacuum Diagram for a 1988 Jeep Wrangler 4.2 liter

I have installed a rebuilt engine for a 1988 Jeep Wrangler and my 'helper' unhooked all the vacuum connections. I need the vacuum diagram so I can get them properly hooked up again. Any idea on where/how to find the diagrams?

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

Posted on Aug 18, 2010

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1999 jeep wrangler vacuum diagram


hey go to autozone and they will print you out the diagram at no cost. I do this alot.

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Hope this help (remember comment and rated this post).

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Vacuum Diagrams


Visit autozone.com (free register); in there you can find the repoair guide about Jeep Wrangler and more details, like VacuumDiagrams...

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Fig. 1: Emission control vacuum schematic-1987-90 with 4.2L engine and automatic transmission

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Fig. 2: Emission control vacuum schematic-1987-90 with 4.2L engine and manual transmission

I hope help you with this. Good luck (remember rated this help).

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Your public library will have a manual covering your mechanical repair. Moreover, they have the automotive shops online software called AllData. It is the best auto technician database available today. You can print out specific troubleshooting procedures, diagrams, step-by-step istructions, and soforth. The typical person cannot afford to pay for this service, just automotive dealerships, etc... that is why the public library made it available to everyone and for free to view and print out material. This should Fixya! Good Luck!

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Engine stalls occasionally even with new ignition system


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.

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