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#1 | ||
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Registered User
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1990 knocks off, nasty gremlin is back
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#2 |
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Registered User
Join Date: Aug 2005
Location: Charleston, SC
Posts: 326
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Which engine do you have? Can you fill out your profile? Thanks.
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88 Wrangler Laredo 4.2L 32" BFG MT's 3 1/4" Lift Warn M8000 Winch Aussie Locker (Front) Carter Carb Idle Problem? http://www.planethoustonamx.com/main/amc_carter_carb_fix.htm |
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#3 |
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Doctor X
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You will get faster help if you fill out your profile.
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MIKE MJM Powder Coating Elizabethtown Ky. |
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#4 |
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Registered User
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updated; its a 2.5 liter 5speed. It a plan stock jeep otherwise. motor was rebuilt around 120,000. now has 167,530 miles on it.
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#5 |
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Registered User
Join Date: Apr 2008
Location: Michigan
Posts: 2,335
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I was going to tell you to check the fault codes until I realised you have the same rig as me. I hate to say it but we have a more difficult time with the electrical issues. Start by checking for spark at the plugs and listening for the fuel pump when you cycle the key? If you have spark at the plugs then shoot starting fluid into the thottle body and see if it cranks up and dies. If you dont hear the fuel pump cycle and you have no spark then its a bad crank sensor, if your fuel pump comes on but it still doesnt want to start with the starting fluid then its a bad cam sensor.
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#6 | |
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Registered User
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Quote:
How hard is it to replace a crank/cam sensor? Any suggestions to checking the ignition sparks by yourself? i suck with a om meter too. sigh |
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#7 |
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Registered User
Join Date: Apr 2008
Location: Michigan
Posts: 2,335
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To check for spark pull a plug wire and use your tongue like you did when you were a kid cheecking a 9 volt battery! LOL Use a screw drive a insert it into the plug boot and put it near ground on the chasis to see if you have any arc from the wire, do the same with the coil wire. The crank and cam sensors are both easy to replace. The cam is in the distributor the crank at the top of the bellhousing.
Does the fuel pump cycle when you turn the key on? |
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