97 gmc safari wont start when you turn key add starter fluid n it runs like a champ whats wrong n what controls the injector pulse

Asked by Aug 22, 2015 at 10:58 AM about the 1997 GMC Safari

Question type: Maintenance & Repair

Injector pulse is weak n won't start when you turn key add starter fluid in throttle body n it
starts n runs good what controls the pulse n why do I need put starter fluid for it to start

2 Answers

7,260

The pulse is activated when your cranking and when the engine is running. In other words if you leave your key on "Run" and the engine is not running then for obvious reason the injectors are not pulsing. So there 2 conditions that tell the injectors to pump ... 1 in the crank and the other is when key is on and engine running ** There is also 1 inhibit ... the anti-theft if not satisfied will prevent or limit the injectors from staying on

1 out of 1 people think this is helpful.

WHY IT ONLY STARTS WITH HELP IS THE FUEL PUMP IS 1 TO 2 POUNDS LOW GM TAKE MORE TO START THAN TO RUN

Your Answer

Add photo

Related Questions

  • What controls the injector from having a pulse on a 97 tnx safari 1 answer

    1997 GMC Safari

    -

    Maintenance & Repair

  • rough idle, stalling, loss of power. 225 answers

    o2 sensor code 44 (lean) Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. It will run normal on occasion but only lasts about 45 seconds or so. I don't think its the torqu...

    1995 GMC Sierra 1500 K1500 SL 4WD Extended Cab Stepside SB

    -

    Maintenance & Repair

  • 1996 k1500 5.7 vortec...cranks but wont start 9 answers

    1996 gmc 1500. 312k on chassis and 120ish on motor and trans. was running perfect for 2500 miles since motor swap and then sat for 4 days. not cranks but wont start. it kind of just stumbles a time ...

    1996 GMC Sierra C/K 1500

    -

    Maintenance & Repair

  • GMC Sierra not running with new parts 5 answers

    I have a 1992 GMC Sierra 1500 with the 4.3 L V6. Just bought all new distributor cap, distributor rotor, plugs and wires, Fuel pump and fuel filter. The truck ran great before but bought parts to pa...

    1992 GMC Sierra 1500 C1500 SLX Standard Cab SB

    -

    Maintenance & Repair

  • fuel injector pulse signal 1 answer

    got a '91 tuned port.had sat for 7 years.replaced the fuel pump and filter,ign.module and ecm.cranks and dies.fuel pressure and spark are fine but injector pulse fades away.checked all ecm power and g...

    1991 Chevrolet Corvette Convertible

    -

    Maintenance & Repair

Search GMC Safari Questions

GMC Safari Experts

#1 Deathjam4
Deathjam4
Reputation 200
#2 T_S_T
T_S_T
Reputation 80
#2 dandyoun
dandyoun
Reputation 80
View All

Related Models For Sale

Used Chevrolet Astro
306 listings starting at $900
Used Chevrolet Astro Cargo Van
171 listings starting at $3,400
Used GMC Savana
13 Great Deals out of 1,573 listings starting at $2,995
Used GMC Safari Cargo
38 listings starting at $3,788
Used GMC Savana Cargo
39 Great Deals out of 5,156 listings starting at $2,999
Used Chevrolet Express
144 Great Deals out of 6,779 listings starting at $2,288
Used Chevrolet Tahoe
1,100 Great Deals out of 31,962 listings starting at $1,495
Used GMC Sierra 1500
1,176 Great Deals out of 58,310 listings starting at $2,495
Used GMC Yukon
543 Great Deals out of 17,622 listings starting at $1,777
Used Toyota Sienna
382 Great Deals out of 27,281 listings starting at $1,195

Used Cars For Sale

2005 GMC Safari For Sale
4 listings starting at $3,995
2002 GMC Safari For Sale
16 listings starting at $5,999
2000 GMC Safari For Sale
26 listings starting at $3,595