1999 GMC Sonoma Consumer Discussions

Chevy S10 - GMC S15 and Sonoma Engine and Underhood Issues

Re: 1999 S-10 4 cylinder surge and hasitiation [flashman3000]

Written by: mickeymouse2 on Jan 13, 2008 07:52 AM

99 GMC Sonoma 4.3L V-6 Obviously your PCM is detecting misfires but cannot isolate a perticular problem. On your model it is usally a dirty or bad connection at the crank sensor, or an intermittant problem with fuel pressure. Here is an explanation. The PCM interprets irractic changes in the pulses coming from the crank sensor as misfires. Basically, your vehicle ... Read More...

Re: 1999 S-10 4 cylinder surge and hasitiation [dentrek]

Written by: flashman3000 on Jan 13, 2008 06:41 AM

I just bought a 99 GMC Sonoma 4.3L V-6. Experienced check light coming on/off over several weeks,hesitation during start up and while driving and fuel mileage is in the toilet (15-16mpg on average). Code came up P0300 "random multiple missfire". I changed plugs, wires, cap, rotor, fuel filter and dumped several cans of chemtool injector cleaner over 3-4 tanks. ... Read More...

Chevy S10 - GMC S15 and Sonoma Engine Swap

GMC Engine

Written by: dave162 on Oct 08, 2007 07:32 PM

Just got a 1999 Sonoma extended cab 2.2L 4cyl. It seems as though this engine is not strong enough for this truck. I had a 96 2.2 standard trans. and it will easily out preform this newer truck which is automatic. Anyone know if I can replace this engine with a V6? Will it match up with the trans. in the truck. How much should it cost? Any help? Read More...

Chevy S10 - GMC S15 and Sonoma Care & Maintenance

Re: s10 ABS [bigrooky14]

Written by: canufixit on Jan 11, 2007 07:04 AM

Hi - try this ... Or search on the net for somehting similar. If the Sensors get dirty - or if the got moved during the Ball joint change - it will trigger the ABS ... this is part of a service notification - it may not be exactly what you have - but you can get the drift of the issue ... ============== Brakes - Low Speed (Below 5 MPH) ABS Activation Bulletin No.: 02-05-25-006B ... Read More...

Chevy S10 - GMC S15 and Sonoma Engine and Underhood Issues

GMC Sonoma with Vortek 4600

Written by: stevenf20 on Jul 26, 2006 08:29 PM

I recently purchased a 1999 GMC with the Vortek 4600, heaby duty suspension and locking rear axle. The truck is rated for 16-21 MPG, but I am only getting 13.5 and I do not do city driving. Is something wrong?? Read More...

Chevy S10/GMC S15-Sonoma: Problems & Solutions

Re: 1999 S10 problems after some time of running ... [canufixit]

Written by: joe3891 on Sep 07, 2005 09:42 AM

This letter is intended to make you aware that some 1998 and 1999 model year GMC Sonoma truck, equipped with a 2.2L 4-cylinder engine, may experience illumination of the "Service Engine Soon" (SES) light, engine misfire, rough idle and hesitation. These conditions may be due to spark plug wire failure. The cause of this condition may be improperly seated and ... Read More...

Re: Need help code P0410 [tlseipel]

Written by: alcan on Aug 15, 2005 04:58 AM

Here's the TSB relating to your P0410 trouble code: 2001 Chevy Truck S10/T10 P/U 4WD V6-4.3L VIN W Emissions - MIL Lamp ON/DTC P0410 Set Bulletin No.: 04-06-04-015 Date: March 22, 2004 TECHNICAL Subject: Check Engine Light On, DTC P0410 Set (Replace AIR Pump, Install New Hose Assembly) Models: 1999-2003 Chevrolet Blazer, S10 1999-2001 GMC Jimmy 1999-2003 ... Read More...