Investigations
| NHTSA ID | Manufacturer | Date open | Date close | Subject | Recall campaign | |
|---|---|---|---|---|---|---|
| STEERING - HYDRAULIC POWER ASSIST - PUMP | ||||||
| PE04004 | GENERAL MOTORS CORP. | 01/08/2004 | 04/30/2004 | HYDRAULIC PUMP SHAFT FAILURES | ||
| The preliminary evaulation is being upgraded.during the ea odi will limitits investigation to only those vehicles equipped with a hydro-boost system, which provides power assist to the braking and steering sytems.vaccuum brake booster vehicles are excluded.odi hasexpanded the scope of the ea to include model years2003 and 2004, asduring the pe, odi learned that the hydroboast pumps were modified in febraury 2004.therefore,odi has expanded the scope to include the additional model years.odi's is concerned because thisisa sudden failure that affects two critical systems of the vehicle, brakes and steering, at the same time.the ability of the operator to handle the dual failures is a concern. further, these vehicles tend to be work vehicles, with some over 10,000 pounds gvwr and many equipped to pull large trailers.dual failures of heavily loaded vehicles and vehicles pulling trailers further increases the safety risk.odi plans to conduct testing to quantify the braking and steering performance degradation and the impact on safe vehicle control, when a hydroboast pump fails. | ||||||
| STEERING - HYDRAULIC POWER ASSIST SYSTEM | ||||||
| EA04012 | GENERAL MOTORS CORP. | 04/30/2004 | 02/28/2005 | HYDRAULIC PUMP FAILRES | 05V005000 | |
| Gm is conducting a recall on all subject vehicles build between may 1999 and october 14, 1999.significant changes were incorporated into production in early october 1999, and vehicles built after that date have lower warranty failure rates.the complaint and warranty data appear to support the effectiveness of these changes. gm made additional changes in november 1999, february 2000, may 2001, and february 2004.odi will continue to monitor this problem and will take further action, if warranted, in the future.for further technical details see the attached engineering analysis report. | ||||||
| PE04004 | GENERAL MOTORS CORP. | 01/08/2004 | 04/30/2004 | HYDRAULIC PUMP SHAFT FAILURES | ||
| The preliminary evaulation is being upgraded.during the ea odi will limitits investigation to only those vehicles equipped with a hydro-boost system, which provides power assist to the braking and steering sytems.vaccuum brake booster vehicles are excluded.odi hasexpanded the scope of the ea to include model years2003 and 2004, asduring the pe, odi learned that the hydroboast pumps were modified in febraury 2004.therefore,odi has expanded the scope to include the additional model years.odi's is concerned because thisisa sudden failure that affects two critical systems of the vehicle, brakes and steering, at the same time.the ability of the operator to handle the dual failures is a concern. further, these vehicles tend to be work vehicles, with some over 10,000 pounds gvwr and many equipped to pull large trailers.dual failures of heavily loaded vehicles and vehicles pulling trailers further increases the safety risk.odi plans to conduct testing to quantify the braking and steering performance degradation and the impact on safe vehicle control, when a hydroboast pump fails. | ||||||
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| STEERING - HYDRAULIC POWER ASSIST - PUMP | |||
| 11/01/2000 | 3 | ||
| Tie rods ends front left and front right replaced 3 times, power steering pump failed and was replaced. *jb | |||
| STEERING - HYDRAULIC POWER ASSIST SYSTEM | |||
| 09/27/2000 | 1 | 01/01/2000 | |
| On 09/27/2000 i was slowing down for a dip,with my foot on the brake. as i crossed the hit the dip and/or just after the dip, i heard a noise come from the left front drivers side of truck. at the same time the left front of truck dropped a little. i was still rolling and didn't think anything was wrong, so i rolled on about 100 ft. to a right curve. when i tried to turn the vehicle it only turned from a 2 oclock position to a 4 oclock position. truck went into ditch, and stopped on the other side. the front wheel was broken off with lug nuts, studs, and other pieces of metal still in the left front tire under the truck. when the wrecker came, i got into the truck to try to guide it as they pulled it out. i put my foot on the brakes before i tried to start the truck, and there was no brake pressure at all. the brake pedal went all the way to the floor. the tie rod had snapped at the knuckle, but 80 % was shine and about 20% was tarnished and grease looing like the tie rod had been cracked a long time. on your search engine site for recalls the only 3500 is listed as 3500hd. in the year 2000 chevrolet didn't make a 3500hd. they only made 3500's that had some heavy duty equipment on them, such as heavy duty transmission, etc.*ak | |||
| STEERING - LINKAGES | |||
| 09/27/2000 | 1 | 01/01/2000 | |
| On 09/27/2000 i was slowing down for a dip,with my foot on the brake. as i crossed the hit the dip and/or just after the dip, i heard a noise come from the left front drivers side of truck. at the same time the left front of truck dropped a little. i was still rolling and didn't think anything was wrong, so i rolled on about 100 ft. to a right curve. when i tried to turn the vehicle it only turned from a 2 oclock position to a 4 oclock position. truck went into ditch, and stopped on the other side. the front wheel was broken off with lug nuts, studs, and other pieces of metal still in the left front tire under the truck. when the wrecker came, i got into the truck to try to guide it as they pulled it out. i put my foot on the brakes before i tried to start the truck, and there was no brake pressure at all. the brake pedal went all the way to the floor. the tie rod had snapped at the knuckle, but 80 % was shine and about 20% was tarnished and grease looing like the tie rod had been cracked a long time. on your search engine site for recalls the only 3500 is listed as 3500hd. in the year 2000 chevrolet didn't make a 3500hd. they only made 3500's that had some heavy duty equipment on them, such as heavy duty transmission, etc.*ak | |||
| STEERING - LINKAGES - TIE ROD ASSEMBLY | |||
| 11/01/2000 | 3 | ||
| Tie rods ends front left and front right replaced 3 times, power steering pump failed and was replaced. *jb | |||