Last post on Apr 25, 2013 at 2:17 AM
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GMC Jimmy, Engine, SUV
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#270 of 301 94 Jimmy dies and then wont start
Dec 06, 2011 (3:21 pm)
I have a 94 Jimmy and suddenly the other night it just died, like you shut the key off died, and wouldnt start. It acted as thought the battery was dead, we had a friend come give us a jump and it cranked over just fine, the next night it pulled the same crap, but this time it would not start with a jump. we got it home and put the battery charger on it, it started and ran fine. Husband drove it around the block and it ran fine, went to start it to get my kids from school, and it will crank but wont start. ???????? help!
#271 of 301 Re: 94 Jimmy dies and then wont start [anorman3]
Dec 06, 2011 (3:54 pm)
Check the alternator. Most likely you will need a new battery now too. Next time the car is started, disconnect the negetive cabel on the battery and if the car shuts off the alternator is bad. Or if you have a volt meter read the voltage between the + and - battery terminals. It shouldn't read lower than 13.5.
#272 of 301 Re: 94 Jimmy dies and then wont start [Alfakenny1]
Dec 06, 2011 (5:37 pm)
Check your Volt gauge next time it's running. 13.9v.-14.2v. is optimal if i recall?
If it's reading 12v. or below...It's the alternator (or cheaper yet....alternator voltage regulator usually held on by screws on back of alternator).
Most people just replace the whole alternator. i on the other hand...save $$'s and just change out the voltage regulator.
#273 of 301 Re: 94 Jimmy dies and then wont start [Alfakenny1]
Dec 07, 2011 (1:37 pm)
It wont start. . . . . can hear the fuel pump hum when you kick the key, and it cranks but wont fire? really starting to get on my nerves!
#274 of 301 Re: 1999 Jimmy No start condition [jmaffin]
Dec 10, 2011 (11:35 am)
i have a 2000 jimmy and i have come up with my last option in mine is a oil pressure sensor. as i have changed pump regulator valve coil module and filter. once you get it started it runs great for the day but the next morning when its cold its back to not starting agin. and i have no check engine light n shops computer says its fine
#275 of 301 Re: 94 Jimmy dies and then wont start [anorman3]
Dec 11, 2011 (2:29 pm)
well we have changed the coil, roter bug, ignition module and still the . . . wont start! any suggestions? We are at a loss as to what in the world could be keeping it from starting?
#276 of 301 Re: 94 Jimmy dies and then wont start [anorman3]
Dec 12, 2011 (10:59 am)
can you do a spark test to determine if it is fireing or not? And i need to clarify, the car will crank and crank and crank, but never actually run.
#277 of 301 Re: 94 Jimmy dies and then wont start [Alfakenny1]
Dec 18, 2011 (2:53 pm)
Exactly it will crank but not fire. there is no spark getting from the distributor to the spark plugs. We have check and the distributor is turning, we have replaced the rotor bug, distributor cap, coil, ignition module. . . . and now are trying to find the crank sensor so we can change it. . . . . any body know where the heck it is on a 1994 gmc jimmy 4wd vortec v6 4.3L
#278 of 301 Re: GMC Jimmy - Hard cold start [kjman25]
Dec 29, 2011 (7:40 am)
hey any luck? i have same problem word for word
#279 of 301 A stupid solution for the no start jimmy
Dec 30, 2011 (6:08 pm)
I came here looking for answers to a no start problem which occured on my 2000 jimmy as soon as the weather got cold. Like alot of people on here my Jimmy wouldnt start in the cold mornngs.. It cranked just seemed like no fuel was getting to it. I'd either have to use fuel or starting fluid or wait till warmer weather... When it started it ran beautifully and would restart.... Until the next morning.
Seeing that I live in upstate NY where the weather is cold often I decided to bring it to a local garage. They switched out a fuel pump (300) ... which i knew wasnt the problem.... they also switched some relays.... which didnt fix the problem.......
The Solution????? Absolutely stupid but it works..... When starting your vehicle... DO NOT just twist the key forward... doing so does something and shuts off the fuel pump or injectors or causes a brain fart somewhere..... No instead slowly baby step your key as you start your jimmy. I know it is stupid sounding I but it works.... You can see the difference on the dashboard lights between the slight turn and the full turn..... It cost me 1200 usd for that answer. Ill end up switching my ignition at some point down the road but for now I can start my car or even not start it anytime i want. Thanks Jim Betit for figuring that one out.
PS if this works for ya let me know