20 Most Recent 1998 Jeep Wrangler Questions & Answers

check fuel pressure regulator and fuel pressure. should be between 45-50 psi and hold steady.. shut off car and let sit 5 min if pressure drops more than 10 lbs one of the two is bad...

1998 Jeep... | Answered on Sep 30, 2018

You can mount a fuel pressure guage to the engine fuel rail at its bicycle valve bleeder, with tof see if it has pressure when you first turn on the key to start. You may be able to hear the fuel pump running by listening at the fuel tank fill cap that you would remove for that moment. By turning on ignition to start, not run, you are energizing the fuel pump to bring up pressure that should happen in several seconds. So, check if it gets to normal fuel starting pressure, maybe 45 to 60 psi. Then turn key all the way to run, to get car engine running and watch the fuel pressure to see if it stays pretty constant at that 45 to 60 psi. Turn engine off, and watch how long it takes for fuel pressure to drop, and it should not happen fast but instead over 15 minutes or more. That might indicate your fuel regulator valve isn;t working right.
Is it possible your starting system is the culprit, say some battery cable loose that may make starting hard or eventually quit until you tighten these cable ends at battery and starter.

1998 Jeep... | Answered on Aug 04, 2017

122 is not a valid code, codes look like this, letter "P" followed by four numbers, a typical code is P0028, which is a VVT control issue.

1998 Jeep... | Answered on Jun 21, 2017

You are going to have to check the codes.Then we will know what the engine is asking for.
A code reader can be bought at Canadian Tire for $30 to $40.

1998 Jeep... | Answered on Jun 02, 2017

You changed the master cylinder and vacuum booster and have no leaks anywhere, but did you bleed the entire brake system after you did this work? A little bit of air in any of the lines will make the brakes ineffective.

1998 Jeep... | Answered on May 30, 2017

Standard transmission?
If so the clutch may be broken/damaged or far out of adjustment.
Can you select the gears with the engine off?
If so then take a real good look at the clutch.

1998 Jeep... | Answered on Apr 10, 2017

the 4.0L inline 6, next time tell engine,
get the pump from jeep, china, or fleabay , who's pump is it?
matters, in many cases.Duracrap pumps.?
wrong methods.
cause it ,did you read the SM?
all pulleys must be in perfect alignment. (the law of belts 101)
unless a GM Corvair... LOL
below is the SM,
free, and real
see TJ, see chapter STEERING
what does it tell you,....
my guess page 7 skipped
see the word flush?

the real book, called SM, serv. man.



1998 Jeep... | Answered on Mar 04, 2017

The engine freeze out plugs are all one size. The block heater takes the place of a freeze out plug.

1998 Jeep... | Answered on Feb 10, 2017

radio dead, that means no sound or nosound nor dial data?
does the am/fm and cd all fail, using real CDDA disks(store bought)
? if the radio is totally 100% dead that is lost power to radio.
fuses or lost ground to the radio.

the check engine light means one thing,.
get the car scanned, 1996 to now, all cars USA.
you scan it, they scan it.
i take it car starts and drives perfectly?
head lights work> and all outer things?

1998 Jeep... | Answered on Jul 05, 2016

engine pan or trans pan,(guess at engine)
what's up doc.?
what is the job.
lost the gasket?
lost the bolts.?
not sure what going on here.
buy a new gasket from Felpro and bingo? there be a pattern


1998 Jeep... | Answered on May 22, 2016

If both heater hoses are getting hot, it could be a blend door problem.

1998 Jeep... | Answered on Dec 01, 2015

uder right side of dash behide glovebox

1998 Jeep... | Answered on Oct 25, 2015

The radio has 2 power feeds, one is wired to battery so it has power all the time for memory and the other power feed is from the ignition circuit so when you turn the ignition on it turns the radio on. You need to determine if the ignition feed is shutting off with the ignition. If the power feed is shutting the power off then there is a problem with the radio. If not then there is a problem in the ignition circuit.

1998 Jeep... | Answered on Oct 11, 2015

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