Question about 1993 GMC Jimmy

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What should I set the timing at for a 1993 GMV jimmy

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Disconnect timing wire under dash on passenger side just under carpet on fire wall, single wire with square plastic connector then set timing to o degrees then reconnect wire your done!

Posted on Feb 02, 2010

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1993 jimmy 4.3 runs rough and hard to start spyder fuel pump filter tune up distributer changed and timing set. no crank sensor.not sure what else to replace


they dont test the parts.most part are easy to test.now you need check all jobs made on the engine.check timing chain.remember most chevy engines have 2marks and desconect a single cable from distribuitor when set the timing ,check the calibration of the IAC ,Check the fuel regulator and make sure the spring running free and check the knock sensor .check if the parts are good,use a ohmn meter and dobble check all grounds terminals to engine and chassis .d recheck the distribuitor and if you are from LA area I'M help you free.

Sep 27, 2012 | 1994 GMC Jimmy

1 Answer

93 gmc jimmy has a lot of smoke out the tail pipe when starting and has set for a while.


this is an indication that the valve seals need to be replaced as oil is leaking past them into the cylinders......cheers

Sep 01, 2011 | 1993 GMC Jimmy

1 Answer

I've got a 1993 GMC Jimmy - the odometer


You should be able to get the speedometer cable at any parts store (napa, carquest, oreilley). It may not be in stock, but they should be able to order it. It should be under $60.

Jun 06, 2011 | 1993 GMC Jimmy

1 Answer

The time jumped or something like that so how do you replace a timing chain in a 1993 gmc jimmy?? neeed help please


If you have no knowledge of engines and replacing a timing chain,find a good repair shop

You won't have all the tools necessary to do the job yourself

Nov 07, 2010 | 1993 GMC Jimmy

2 Answers

Looking for the fireing order for my 1993 jimmy 4.3 votek moter


Here is the firing order for that vehicle and engine, however, some people can not figure it out (color coding and numbers seem to be too complicated for some) and have given low ratings for this diagram, and I will probably stop giving out this firing order. Let me know if you need help to understand this diagram, or require any further assistance.



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Aug 05, 2010 | 1993 GMC Jimmy

1 Answer

93 gmc jimmy wont start turns over and theres spark but it wont fire. fuel pump sounds like its priming


spray ether into intake , if it wants to run then you have a fuel problem. if you can rent a timing light, check the timing, it could have jumped, and it will still have spark. also check the plugs for proper gap.

Jun 21, 2010 | 1993 GMC Jimmy

2 Answers

Rough idle and alot of carbon out exhaust pipe, 1993 gmc jimmy


You need new egr valve gasket with a screen on it. It will block carbon from clogging it causing rough idle. Need 10mm wrech and socket set. I found the part at napa for around 22 bucks. I have had my 93 4x4 Jimmy for 10 yrs it now has 235000 on it and still going.

Dec 30, 2009 | 1993 GMC Jimmy

1 Answer

Car won't fire


if you have checked for spark at the spark plug end of the wire and it was not an sporadic,then you need to check the fuel pressure at the fuel rail reed valve,it should be at least 50psi ti start an engine thru the injectors

Dec 10, 2009 | 1993 GMC Jimmy

1 Answer

1993 gmc jimmy 4.3 cpi. no fuel sprays out the the no.1 cylinder,


You will have to replace the poppet. You can buy them one at a time from GM. You can also buy the whole set up aftermarket now. Good Luck

May 14, 2009 | 1993 GMC Jimmy

1 Answer

1993 jimmy wont start


you are off the timing by a tooth or two. when you replaced the cap and rotor, if you did not mark the position of the rotor with some point on the motor or firewall, then it is likely that you installed the rotor by a couple of degrees. so, when you are going up hill, and the engine needs to advance the timing to add power you timing is off even more causing lack of power and sputtering and backfiring.

Apr 22, 2009 | 1993 GMC Jimmy

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