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On a 17 year old vehicle I would suspect a vacuum leak. Replace all under-hood vacuum hoses. Also make sure the brake booster is not leaking. This is a relatively inexpensive repair. Replace the hoses one at a time as to not get confused. An intake manifold leak can also cause the same symptoms. Of course the plugs and plug wires are suspect.
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∙ 15y ago
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Does a 1991 Jeep Wrangler Hard Top fit a 1999 Jeep Wrangler?
Not exactly. The body styles are different. A 1991 Jeep Wrangler is a YJ as a 1999 is a TJ. t
1991 Jeep Wrangler horn?
So what is the question about your 1991 Wrangler horn?
Will a 4.0 out of a 2005 Jeep Wrangler fit into a 1991 Jeep Wrangler without modifications?
no
What kind of brake fluid does a 1991 Jeep Wrangler use?
A 1991 Jeep Wrangler uses DOT 3 brake fluid.
Will 2007 Jeep Wrangler rims fit on 1991 Jeep Wrangler?
No, they are a different bolt pattern.
Is a 1991 Jeep Wrangler fuel injected?
Yes. A 1991 Jeep is fuel injected.
What is the correct factory tire size for a 1991 Jeep Wrangler?
The correct factory tire size for a 1991 Jeep Wrangler is 235/75 R 15.
How many quarts of oil does a 1991 jeep wrangler 6 cylinder take?
A 1991 Jeep Wrangler six cylinder holds six quarts of 10W30.
What is the wheel size on a 1991 Jeep Wrangler?
The 1991 Wrangler had 15 inch wheels, the bolt pattern was 5X4.5
Is there a timing chain on a 1991 Jeep Wrangler?
Yes
What would make a 1991 Jeep Wrangler that has spark and fuel but will not start?
the timing is off make sure that you timed it to piston #1 i have a 1991 wrangler that had the same problem when i rebuilt it.
Will a 1995 jeep 4-cylinder motor work in a 1991 Jeep Wrangler?
Yes.
