88 s-15 Jimmy wont start - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**bigunde** · 01-22-2011, 05:04 PM

Picked up an 88 S-15 jimmy and cant get it to start. It has the 2.8 TBI engine. It spins over and you can see gas coming from the injectors. It seems to have a real week spark. I hafve changed the wires, cap,plugs, and rotor. I even swamped out the coil. Any ideas?

**truckdude239** · 01-22-2011, 05:30 PM

Check to see if the rotor is spining in teh dis when you turn it over

ChevyTech · 01-22-2011, 11:33 PM

It could be a bad distributor module.

The distributor module controls the currant flow on the primary side of the coil which affects how much it can produce. And just like an open condenser on a breaker point system, a bad module can cause weak spark.

Many stores like NAPA in my area will test the distributor module for free if you bring it in.

The test results from these store are not always accurate, and some times the will say the module is good when it is not, but for a free test that may find the problem it is worth a try.

Make sure when you install or reinstall the distributor module that you use heat sink compound/grease under it. The compound helps dissipate heat from the module. Without it, the module will fail.

01-22-2011, 05:04 PM	#1
bigunde Rusty Rockerfeller Join Date: May 2003 Location: South Georgia Posts: 1,631	88 s-15 Jimmy wont start Picked up an 88 S-15 jimmy and cant get it to start. It has the 2.8 TBI engine. It spins over and you can see gas coming from the injectors. It seems to have a real week spark. I hafve changed the wires, cap,plugs, and rotor. I even swamped out the coil. Any ideas?

01-22-2011, 05:30 PM	#2
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,217	Re: 88 s-15 Jimmy wont start Check to see if the rotor is spining in teh dis when you turn it over __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

01-22-2011, 11:33 PM	#3
ChevyTech Registered User Join Date: May 2004 Location: Minnesota Posts: 4,620	Re: 88 s-15 Jimmy wont start It could be a bad distributor module. The distributor module controls the currant flow on the primary side of the coil which affects how much it can produce. And just like an open condenser on a breaker point system, a bad module can cause weak spark. Many stores like NAPA in my area will test the distributor module for free if you bring it in. The test results from these store are not always accurate, and some times the will say the module is good when it is not, but for a free test that may find the problem it is worth a try. Make sure when you install or reinstall the distributor module that you use heat sink compound/grease under it. The compound helps dissipate heat from the module. Without it, the module will fail. __________________ For those of you that are wondering why you are not getting replies to your thread: Did you give the model, year, engine, fuel system type, and transmission information? If it is modified from what came stock from the factory, let us know that too.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.